‎Zur Quantentheorie der Multiplettstruktur und der anomalen Zeemaneffekte. (Eingegangen am 10. April 1925).‎

‎Berlin, Julius Springer, 1925. Contemp. hcloth. Gilt lettering to spine. In: ""Zeitschrift für Physik. Hrsg. von Karl Scheel"", 32. Band. VI,951 pp., textillustr. (Entire volume offered). Heisenberg's paper: pp. 841-860. A small erased stamp on titlepage leaving two small holes, no loss of text. Internally clean.‎

‎First appearance of Heisenberg's importent paper on the complex spectra of many-electron atoms, - the third paper Heisenberg submitted from Copenhagen on the Quantum Theory.""The paper on multiplet structure and anomalous Zeeman effects..., contained a complete discussion of the problem at that time. This paper had the blessing of Niels Bohr"" also Pauli, who wasin Copenhagen when the paper was completed, agreed with its overall content. The central goal of the paper was to formulate what Bohr called 'the stress (constraint), which is not analogous to the action of external forces' and to derive quantitative conclusions from it."" (Mehra and rechenberg ""The Historical development of Quantum Theory"", vol. 2, p. 201).The volume contains another importent paper in the history of Quantum Physics: W. BOTHE und H. GEIGER ""Über das Wesen des Comptoneffekts, ein experimenteller Beitrag zur Theorie der Strahlung"", pp. 639-663.‎

‎Zur Quantentheorie der Multiplettstruktur und der anomalen Zeemaneffekte. (Eingegangen am 10. April 1925).‎

‎Berlin, Julius Springer, 1925. Contemp. hcloth. In: ""Zeitschrift für Physik. Hrsg. von Karl Scheel"", 32. Band. VI,951 pp., textillustr. (Entire volume offered). Heisenberg's paper: pp. 841-860. A stamp to title-page and front free endpaper. Interally clean.‎

‎First printing of Heisenberg's importent paper on the complex spectra of many-electron atoms, - the third paper Heisenberg submitted from Copenhagen on the Quantum Theory.""The paper on multiplet structure and anomalous Zeeman effects..., contained a complete discussion of the problem at that time. This paper had the blessing of Niels Bohr"" also Pauli, who was in Copenhagen when the paper was completed, agreed with its overall content. The central goal of the paper was to formulate what Bohr called 'the stress (constraint), which is not analogous to the action of external forces' and to derive quantitative conclusions from it."" (Mehra and Rechenberg ""The Historical development of Quantum Theory"", vol. 2, p. 201).The volume contains another importent paper in the history of Quantum Physics: W. BOTHE und H. GEIGER ""Über das Wesen des Comptoneffekts, ein experimenteller Beitrag zur Theorie der Strahlung"", pp. 639-663.‎

‎DE OUDE GLASRAMEN VAN DE COLLEGIALE SINTE-GOEDELE TE BRUSSEL.‎

‎Antwerpen / Utrecht, De Sikke l / W. De Haan N.V., 1942 Gebonden, halflinnen, 19x25.5cm, 48 pp., 47 afbeeldingen in zw/w.‎

‎Maerlantbibiliotheek. V.‎

‎BIG EGO‎

‎ 1978 disque Etats Uis, 1978, Giorno Poetry System GPS 012-013, 2 disques 33trs, 30cm, sous pochette ouvrante, conception et photographies de Les Levine.The Dial-a-Poem poets Big Ego.Avec, Helen Adam, Laurie Anderson, Robert Ashley, Jim Brodey, Otis Brown, William S. Burroughs, Jackie Curtis, Mona DaVinci, Kenward Elmslie, The Fugs, John Giorno, Philip Glass, Anthony J. Gnazzo, Ted Greenwald, Steve Hamilton, Bernard Heidsieck, Joe Johnson, Michael Lally, Denise Levertov, Robert Lowell, Meredith Monk, Eileen, Myles, Frank O'Hara, Claes Oldenburg, Joel Oppenheimer, Ron Padget, Ishmael Reed, Ed Sanders, Harris Schift, Patti Smith, Lorenzo Thomas, Steve & Gloria Tropp, Anne Waldman, Larry Wendt, Robert Wolson & Christopher Knowles. (103164) ‎

‎The Theory of Continous Calculating Machines and of a Mechanism of this class on a New Principle. Received and Read June 19, 1884.‎

‎London, Harrison and Sons, 1886. 4to. No wrappers as extracted from ""Philosophical Transactions"", 1885. Vol. 176 - Part II, Pp. 367-402 a. 34 textillustr.‎

‎First appearance of an importent paper in the history of calculating machines.""In his first year at Liverpool he published a paper on 'The theory of continuous calculating machines and of a mechanism of this class on a new principle' in the prestigious Philosophical Transactions of the Royal Society. This work investigated how to advance the design of integrator mechanisms and fit them for tasks more complex than mere numerical calculating machines, and was extremely important in the development of analogue computing.""(Jane Carruthers)‎

‎Árbækur Reykjavikur 1786-1936. 2. Utg. Jón Jóhannesson sá um útgáfuna.‎

‎Reykjavik, H.F. Leiftur, u.år Ca. 1950). Solidt hshirtbd. VIII,424,(1) pp. samt en del plancher.‎

‎L'Album d'Auschwitz: D'après un album découvert par Lili Meier survivante du camp de concentration‎

‎SEUIL 1983 224 pages in4. 1983. Cartonné jaquette. 224 pages.‎

‎Bon état sous rhodoïd avec sa jaquette intérieur propre‎

‎Ueber Hrn. Brewster's neue Analyse des Sonnenlichts.‎

‎Leipzig, Johann Ambrosius Barth, 1852. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Dritte Reihe Bd. 26, Achtes Stück.(= Heft No. 8 of 1852). (The entire issue (No. 8) offered). Titlepage to vol. 26. Pp. 501-600. Helmholtz's paper: pp. 501-523. Clean and fine.‎

‎First appearance of this founding paper in the modern theory of colour, in which Helmholtz proved the surprising fact that there are only two among the colours of the spectrum, yellow and indigo-blue, which together yields pure white, that is, are complementary to each other, whereas their combination had always been supposed to produce green.""Helmholtz turned to the intricate problems of color vision in 1852 with an attack on Sir David Brewster's new theory of light. Brewster had maintained the objective reality of three primary colors by supposing, in opposition to Newton, that there exist three distinct kinds of light, each of which excites in the eye one of the sensations red, yellow, or blue. Helmholtz regarded the theory as still another confusion of physical stimulus and subjective responce....He also revived Young's theory of color visoin...only to refute it. He had discovered that spectral colors, when mixed, always yield a duller color of less-than-spectral saturation. Therefore the whole idea that all colors may be obtained from mixtures of three primary colors must be incorrect, he concluded, for the spectral colorss, at least, can never be obtained in their full saturation by mixing any three of their number....Although Helmholtz dismissed Young's theory in 1852, by 1858 he had changed his mind and become its formost advocate. In order to save Ypoung's theory....Helmholtz asumed that Young's physiological primaries are not spectral colors att all, but colors of far greater-than-spectral saturation...""(DSB VI, pp. 246-247). Garrison & Morton 1508.‎

‎Ueber galvanische Ströme, verursacht durch Concentrationsunterschiede"" Folgerungen aus der mechanischen Wärmetheorie. (On galvanic Currents caused by Differences in Concentration: Deductions from the Mechanical Theory of Heat).‎

‎Leipzig, Johann Ambrosius Barth, 1878. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 3, 2. Heft. Pp. 161-320 a. 1 folded plate. (entire issue offered). Helmholtz' paper: pp. 201-216. With titlepage to volume 3.‎

‎First apperance - in full - of this importent paper in which for the first time the 2 laws of thermodynamics were applied to electrical phenomena. Parts of the paper were published already in 1877.""In 1877 Helmholtz attempted to predict theoretically the electromotive force of a galvanic cell for different concentrations of a salt solution. Under certain conditions the cell can be treated as a reversible cycle and the laws of Carnot and Clapeyron applied to it. The theory was in substantial agreement with experimental data by James Moser.""(DSB). - The Moser-paper confirming Helmholtz theory is printed here on pp. 216-219, taken from Monatsberichte der Berl. Akad., 1877.""In his work 'On Galvanic Currents', Helmholtz was the first to apply the two laws of thermodynamics to electricity. In order to keep up a current of electricity through any conductor it is necessary to expend a certain amount of chemical or mechanical work"" the supply of positive electricity in the positive end of the conductor must be perpetually renewed, in order to oppose the repulsive force of the positive electricity there accumulated, and the same holds for the negative electricity at the negative end.""(Koenigsberger ""Hermann von helmholtz"", pp. 309-12).‎

‎Ueber die Dauer und den Verlauf der durch Stromesschwankungen inducirten elektrischen Ströme. (On the Duration and Course of the Electrical Currents induced by Variation of an Inducing Current).‎

‎Leipzig, Johann Ambrosius Barth, 1851. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Bd. 83, Viertes Stück.(= Heft No. 8 of 1851). (The entire issue offered (Heft 2 of vol. 83 with titlepage to vol. 83). Pp.469-600 a. 2 engraved plates. Helmholtz's paper: pp. 505-540. Clean and fine.‎

‎First appearance of this paper in which Helmholtz for the first time measures and gives the mathematical formula for the duration of induced electrical currents and thus distinguished with mathematical accuracy from those due to nerve-action.""In (the offered paper) he begins by stating a mathematical law, which he had verified by a long and difficult series of experiments. By means of this law F. neumann was enabled to solve the problem he had previously laid aside, as to the distribution of current in a copper disk rotating below the two poles of a magnet......After Helmholtz had extended this exponiential law mathematically to divided circuits, he tested it experimentally by means of a new type of galvanic contact-key, which madeit possible to vary the interval between the opening and closing of any current, as required.""(Koenigsberger ""Hermann von helmholtz"", pp. 79-80).‎

‎Physiologische Wärmeerscheinungen. Bericht über ""Der Inhalt der Schrift ""Ueber die Erhaltung der Kraft"""".‎

‎Berlin, G. Reimer, 1850. Contemp. hcalf, profusely gilt spine. XXXII,622 pp. In: ""Fortschritte der Physik im Jahre 1847. Dargestellt von der physikalischen Gesellschaft zu Berlin"". III. Jahrgang. Redigirt von G. Karsten. XLIV,703 pp. Stamp on titlepage. Helmholtz's paper: pp. 232-245. Clean and fine.‎

‎First printing of Helmholtz's own report on the meeting of the 23rd of July 1847 in the Physical Society of Berlin. In the meeting he presented with great success his groundbreaking paper ""Ueber die Erhaltung der Kraft"". In the paper printed in the ""Fortschritte"", Helmholtz summarizes the main mathematical and historical features of his Conservation of Energy-principle as it was laid down in ""Ueber die Erhaltung der Kraft"".""On July 21 he (Helmholtz) announced to du Bois-Reymond that he would bring forward his 'Conservation of Energy' on the 23rd at the Physical Society. The meeting was one of the most memorable in the annals of the Society"" as du Bois tells us, Helmholtz revealed himself at one bound, to the surprise of all his friends, as a master of mathematical physics. The members of the Physical Society were acquainted with the Law of the Conservation of Energy when it was still unknown to all the rest of the world.""(Leo Koenigsberger in ""Hermann von Helmholtz"", pp. 38).In his groundbreking work Helmholtz announced the first comprehensive statement of the first law of thermodynamics: All modes of energy, heat, light, electricity, and all chemical phenomena, are capable of transformation from one to the other but are indestructible and cannot be created. Helmholtz offered his paper to Poggendorf's 'Annalen', but the editor declined to publish so dangerous a speculation. Helmholtz had it printed at his own expense in a small number in 1847.‎

‎Note sur la vitesse de propagation de l'agent nerveux dans la nerfs rachidiens" (Transmise par M. de Humboldt). (Séance du Lundi 25 Fevrier 1850). (+) Deuxieme Note sur la vitesse de l'agent nerveux. (2 Papers).‎

‎Paris, Bachelier, 1850 a. 1851. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 30, No 8 and Tome 33, No 9. Pp. (185-) 215 a. pp. (253-) 276. Helmholtz's papers: pp. 204-206 a. pp. 262-265. Clean and fine.‎

‎First appearance (also in Berichte königl. Preuss. Ak. the same year) of these short notes in which Helmholtz announced his discovery and measurements of the time delay of nervous impulses, a discovery ""which opened a new and unbounded field of investigations to physiologists"". It is one the most importent discoveries in physiology in the 19th century.""Du Bois-Reymond... received Helmholtz's first two-page note. Müller, to whom Du Bois tried to ecplain it, insisted on rejecting the conclusion, arguing that Helmholtz had not eliminated the time for the contraction of the muscle. Humboldt, du Bois wrote Helmholtz, ""war ganz depaysiert"", and at first refused to send the paper to Paris for publication there. Du Bois had first to edit it and then Humboldt, won over, had it published in the ""Comptes Rendus"", adding a further explanatory foot-note of his own. By summer, Müller had also been won, and then helmholtz published his longer paper in which he included a measurement of tghe time of the muscular cobntraction and nes determinations of the rate of transmission.""(Boring ""History of Experimental Psychology"", p. 48).""To separate the movement in time from the event of will that caused it was in a sense to separate the body from the mind, and almost from the personality or self. At any rate, helmholtz's discovery was a step in the analysis of bodily motionthat changed it from an instantaneous occurrence to a temporal series of events, and it thus contributed to the materialistic view of the psychophysical organuismthat was the essence of nineteenthy century science.... The most impiortent effect of the experiment and all the research that followed upon it was, however, thatit brought the soul to time, as it were, measured what had been ineffable, actually captured the essential agent of mind in the toils of natural science."" (Boring ""History of Experimental Psychology"", p. 42).""Helmholtz’ research in sensory physiology began in 1850, when he determined the velocity of the nerve impulse in the sciatic nerve of the frog. In 1852 he obtained more precise results through his invention of the myograph. This device, in which the muscle traces the motion of its contraction upon a rotating drum, permitted more exact measurement of the small time intervals involved than any previous method. Helmholtz’ measurements yielded not only a finite velocity for nerve propagation but also the surprisingly slow one of about ninety feet per second. The result was considered a victory for the mechanistic school, for it seemed to confirm du Bois-Reymond’s hypothesis that the nerve impulse consisted in the progressive rearrangement of ponderable molecules.""(DSB).‎

‎Physiologische Wärmeerscheinungen. Bericht ""über die Theorie der physiologischen Wärmeerscheinungen für 1845"" (Report on the Work done on the Theory of Animal Heat in 1845).‎

‎Berlin, G. Reimer, 1847. Contemp. hcalf, profusely gilt spine. Light wear along edges. XXXII,622 pp. In: ""Fortschritte der Physik im Jahre 1845. Dargestellt von der physikalischen Gesellschaft zu Berlin"". I. Jahrgang. Redigirt von G. Karsten. XXXII,622 pp. A stamp on titlepage. Helmholtz's paper: pp. 346-355. Clean and fine.‎

5 Images

‎First appearance of this milestone paper which represents the first, and most importent, step towards his great work laid down in ""Über die Erhaltung der Kraft"", 1847. This is Helmholtz' FIRST PAPER ON THE CONSERVATION OF FORCE""At the beginning of October, 1846, Helnmholtz sent a 'Report on Work done on the Theory of Animal Heat for 1845', at du Bois' request, to the ""Fortschritte der Physik"", issued by the Physical Society. (the paper offered). This was merely an abstract from the article in the Encyclopaedic Dictionary.....BUT IT ANTICIPATES MORE DEFINITELY THE CONDCLUSIONS OF HIS GREAT WORK. He states without hesitation that the material theory of heat is no longer tenable, and that a kinetic theory must be substituted for it, since heat originates in mechanical forces, either directly by friction, or indirectly from an electrical current produced by themotion of magnets. This conception of heat as a motion involves the conclusion that mechanical, electrical and chemical forces must always be the definite equivalent of one and the same energy, whatever the mode by which one force is transformed into another. The empirical confirmation of this law must be the imperative duty of physicists and physiologists.""(Leo Koenigsberger in ""Hermann von Helmholtz"", pp. 34-35).""In the ""Fortschritte der Physik"" for 1845, which appeared in 1847, Helmholtz published a report on theories of physiological heat which he later acknowledged as belonging to his work on the conversation of force.""(Jungnickel & McCormach ""Intellectual Masteryof Nature, Vol. 1, p. 157).‎

‎Die theoretische Grenze für die Leistungsfähigkeit der Mikroskope. (The Theoretical Limit of the Efficiency of Microscopes).‎

‎Leipzig, J.A. Barth, 1874. Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Jubelband. With titlepage to ""Jubelband"". Titlepage with a stamp. Pp. 557-584‎

‎First appearance of a fundamental paper in modern optics in which Helmholtz published his discovery of the resolution limit of the microscope. He found that the limit for the difference of magnitude that we are able to distinguish plainly is in general found equal to half the wave-lenght of theparticular light employed. A further increase in optical power beyond that of the best modern instruments does not therefore seem possible.‎

‎Death in the afternoon.‎

‎Couverture rigide. Reliure toile de l'éditeur. 359 pages + photos. Dos et tranche inférieure légèrement défraîchis.‎

‎Livre en anglais. Première édition anglaise. Avec 81 photos de corridas. With a fontispice from a painting by Juan Gris : The bullfighter. Jonathan Cape - London, 1932.‎

‎VLAAMSE WANDTAPIJTEN UIT DE WAVELBURCHT TE KRAKAU EN UIT ANDERE EUROPESE VERZAMELINGEN TAPISSERIES FLAMANDES DU CHATEAU DU WAVEL A CRACOVIE ET D'AUTRES COLLECTIONS EUROPEENNES.‎

‎Gent, Stad Gent, 1987 Paperback, originele uitgeversomslag in kleur, 24,5x29cm, 136 pp., illustraties in kleur en z/w, tekst in nederlands en frans, tentoonstellingscatalogus Sint-Pietersabdij Gent 12.12.1987-14.02.1988.‎

‎tentoonstellingscatalogus Sint-Pietersabdij Gent 12.12.1987-14.02.1988.‎

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‎Alice 2001 96 pages 11 8x1x16 2cm. 2001. Broché. 96 pages.‎

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‎Le Prince de Kazarkhan‎

‎H&O 2007 299 pages 14 6x2 4x21 8cm. 2007. Broché. 299 pages.‎

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‎henri riviere lithographie the studio‎

‎ Illustration pour La Marche à l'Etoile. 290 x 210 mm. Paru dans "The Studio" (Londres), novembre 1898. Serpente , cachet à sec.‎

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‎On the Influence of a Spiral Conductor in increasing the Intensity of Electricity from a Galvanic Arrangement of a Single Pair, &c.‎

‎(London, Richard and John E. Taylor, 1837). No wrappers. Extracted fron ""Scientific Memoirs, selected from The Transactions of Foreign Academies of Science and Learned Societies. Edited by Richard Taylor."", Vol. I. Pp. 540-547.‎

‎Henry's milestone paper announcing his discovery of electrical self-induction. ""Henry independently discovered electro-magnetic induction and in this paper announced his discovery of electric self-induction, one of the prime properies of an electro-magnetic circuit. Henry was an eminent experimenter but was casual in publishing his findings with resulting lack of recognition of his contributions.""(Bern Dibner).Dibner ""Heralds of Sciece"", No.63.It was also printed the same year in ""Transactions of the American Philosophical Society, New Series, Vol. 5"". The paper was later printed in ""Philosophical Magazine"", 1840.""The direction of Henry’s thought became somewhat apparent in his 1835 paper (refers to the papers reading before the American Phil. Soc., febr. 6th, 1835) on the action of a spiral conductor in increasing the intensity of galvanic currents. The paper started out as an affirmation of Henry’s priority in the discovery of self-induction. He then combined induction proper (using Faraday’s findings and his own) with selfinduction to show how these produce a pattern of repulsions yielding an increased effect in spirals. He specifically linked these “magneto-electrical” results to the principles of static induction developed by Cavendish and Poisson. This explanation was then applied to Savary’s report of changes of polarity when magnetic needles were placed at varying distances from a wire in which a current was being transmitted (""Mémoire sur l’aimantation,"" in Annales de chimie et de physique, 34 [1827],. That is, currents appeared periodically in the air surrounding a current-bearing straight wire as a result of the actions of induction and self-induction."" (DSB).Wheeler Gift: 2724-2725a.‎

‎Ueber elektro-dynamische Induction.‎

‎(Leipzig, Johann Ambrosius Barth, 1842). Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Ergänzungsband 1, Stück 2. Pp. 193-384 a. 1 folded engraved plate. (The entire issue offered). Henry's paper: pp. 282-312.‎

‎First German version of Henry's description of his discovery of self-induction. He missed the credit for the discovery of induction to Faraday, but he had done the key experiment ahead of Faraday, but Faraday was the first to publish. But he is credited for the discovery of self-induction (1832) and Faraday discovered it independently two years later (1834).""In Henry's paper, however, he explained thet the electric current in a coil can induce another current not only in another coil but in itself. The actual current observed in the coil is, then, the combination of the original current and the induced current. This is called self induction.""(Isac Asimov).The issue contains further notable papers Michael Faraday's ""Vierzehnte Reihe von Experimental-Untersuchungen über Elektricität"", 2o-22. (Nos 1667-1748). Pp. 249-281. First German version. In this paper FARADAYamplifies his theory of electrostatic induction by making further use of the analogy with the induction of magnetism. Whittaker describes the paper as having ""THE FUNDAMENTAL EQUATION OF ELECTROSTATICS"", as modified in order to take into account the effect of the specific inductive capacity.""(Whittaker I, pp.187-89).‎

‎BOOK ONE SEXUS VOLUMES FOUR AND FIVE‎

‎Paris 1949 The Obelisk Press Cloth First Edition ‎

‎THIS EDITION PRINTED FOR PRIVATE CIRCULATION, IS LIMITED TO THREE THOUSAND COPIES, THIS IS COPY N° 109, PUBLISHED BY SOCIETE D'EXPLOITATION DES EDTIONS DU CHENE PARIS 1949 MUST NOT BE IMPORTED INTO ENGLAND OR THE USA , THE ROSE CRUCIFIXION‎

‎Le Café‎

‎Du May 1996 Format Poche cartonné 12 cm sur 14. 93 pages. Bon état d’occasion.‎

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‎Experiments on the Quantity of Gases absorbed by Water, at different Temperatures, and under different Pressures. Read December 23, 1802. (and) Appendix to Mr. William henry's Paper, on the Quality of Gases absorbed by Water, at different Temperature...‎

‎(London, W. Bulmer and Co., 1803). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1803 - Part I. Pp.29-42 and 1 engraved plate and Appendix: pp. 274-276. With titlepage to the volume Part I. A paperflaw in margin of the first leaf, neathly repaired, no loss. The plate with a few small brownspots. Verso of titlepage with a small stamp, otherwise clean and fine, wide-margined.‎

‎First appearance of this highly importent paper in which Henry announced his discovery of the law, which later was termed ""Henry's Law"". The law states that when a gas is absorbed in a liquid the weight of the gas dissolved is directly proportional to the pressure of the gas over the liquid. This discovery contributed directly to the atomic theory of Dalton.(Parkinson: Breakthroughs: 1803 C) ""Dalton's own experiments on the solution of gases and the stimulus afforded by Henry's work have been seen as crucial in the development of the atomic theory.""(DSB VI p. 285).A paper by Humphrey Davy: ""An Accont of some Experiemnts and Observations on the constituent Parts of certain astringent Vegetables"" and on their Operating in Tanning. Read February 24, 1803"", comes with. In the same volume Pp. 233-273.‎

‎Experiments on the Quantity of Gases absorbed by Water, at different Temperatures, and under different Pressures. Read December 23, 1802. (and) Appendix to Mr. William henry's Paper, on the Quality of Gases absorbed by Water, at different Temperature...‎

‎London, W. Bulmer and Co., 1803. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1803 - Part I. Pp.29-42 and 1 engraved plate and Appendix: pp. 274-276. With titlepage to the volume Part I. Some browning to lower part of titlepage. Light foxing to the plate.‎

‎First appearance of this highly importent paper in which Henry announced his discovery of the law, which later was termed ""Henry's Law"". The law states that when a gas is absorbed in a liquid the weight of the gas dissolved is directly proportional to the pressure of the gas over the liquid. This discovery contributed directly to the atomic theory of Dalton.(Parkinson: Breakthroughs: 1803 C) ""Dalton's own experiments on the solution of gases and the stimulus afforded by Henry's work have been seen as crucial in the development of the atomic theory.""(DSB VI p. 285).A paper by Humphrey Davy: ""An Accont of some Experiemnts and Observations on the constituent Parts of certain astringent Vegetables"" and on their Operating in Tanning. Read February 24, 1803"", comes with. In the same volume Pp. 233-273.‎