‎On the Chemical Action of the Rays of the Solar Spectrum on Preparations of Silver and other Substances, both metallic and non-metallic, and on some Photographic Processes. Received and Read Febrauray 20, 1840. (+) Note I- (III).- On the Distribution ...‎

‎(London, Richard and John E., Taylor, 1840. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1840 - Part I. Pp. 1-59. (Note I- III pp. 51-59) and 2 plates. (one showing Herschel's telescope, lithographed"" the other showing the heat spectrum of the sun in stipple engraving).‎

‎First appearance of an important pioneer-paper in the history of early photography, in which subject John Herschel was one of the main contributors. The paper deals with the dynamical interplay between photochemistry and photography and is of the greatest importence in applied photography. The later sections of the paper deals with the spectrum of the sun, Herschel's so-called thermographical representation of the spectrum of the sun (with description of the Actinograph, invented by him), rendering the heat radiation visible in the spectrum. This first importent spectrum is reproduced here on one of the plates (in stipple engraving). In this paper he introduces the photographical concepts 'positive' and 'negative' to express, respectively, pictures in which the lights and shades are the same as in nature, or as in the original model, and in which they are opposite. For this large paper John Herschel was awarded the Copley archives winners Prize for 1840.""The object which the author has in view in this memoir is to place on record a number of insulated facts and observations respecting the relations bothof white light, and of the differently refrangible rays, to various chemical agents whic have offered themselves to his notice in the course of his photographical experiments, suggested by the announcement of M. Daguerre's discovery.....The terms ""direct"" and ""reverse"" are also used to express pictures in which objects appear, as regards right and left, the same as in the original, and the contrary....The principal objects of inquiry in the present paper...are the following. First, the means of fixing photographs, the comparative merits of different chemical agents...The means of taking photographic copies and transfers.....The preparation of photographic paper....The chemical analysis of the solar spectrum forms the subjects of the next section in the paper...""(Abstract).‎

‎On certain Improvements on Photographic Processes described in a former Communication, and on the Parathermic Rays of the Solar Spectrum. Received November 17, - Read November 17, 1842.‎

‎(London, Richard and John E., Taylor, 1843. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1843 - Part I. Pp. 1-6.‎

‎First appearance of a pioneer-paper in the history of early photography, as Herschel here for the first time describes his discovery of the iron printing process with ammonio-citrate of iron by both methods, namely with blue lines on a white background and white lines on a blue ground.‎

‎Atomspektren und Atomstruktur. Eine Einführung für Chemiker, Physiker und Physikochemiker. EA! (= Wissenschaftliche Forschungsberichte Naturwissenschaftliche Reihe, hrsg. von R. Ed. Liesegang, Band 37).‎

‎Dresden / Leipzig: Theodor Steinkopff, 1936. Orig. full cloth, cloth on spine loose, slightly soiled. Internally clean. XV, 191 pp. Illustr.‎

‎[ 3 Titles in 1 Volume : ] Die Unterscheidung natürlichen und künstlichen Seiden [ With : ] Die Kunstseide [ With : ] La Soie artificielle. Cellulose et fabrication de la soie artificielle‎

‎1 vol. in-8 reliure demi-percaline verte, Die Unterscheidung natürlichen und künstlichen Seiden, von Prof. Dr. Alois Herzog, Verlag von Theodor Steinkoff, Dresden, 1910, 78 pp. [ With : ] Die Kunstseide, von Dr. Phil. Franz Becker, mit 142 in den Text gedruckten Abbildungen, Druck und Verlag von Wilhelm Knapp, Halle a. S., 1912, 368 pp. [ With : ] La Soie artificielle. Cellulose et fabrication de la soie artificielle, Librairie Bernard Tignol, Paris, s.d. [circa 1905 ] 96 pp. ‎

14 Images

‎Good copy. Bon exemplaire‎

‎Grundzüge der Geschichte der Chemie. Richtlinien einer Entwicklungsgeschichte der allgemeinen Ansichten in der Chemie.‎

‎Stuttgart, Enke, 1916. Cont. hcloth. Orig. wrappers pasted on frontboard. With stamps. Lower part of back taped. VI,142 pp.‎

‎Ueber die wichtigsten Beziehungen zwischen der chemischen Zusammensetzung von Verbindungen und ihrem physikalischen Verhalten‎

‎Stuttgart, Ferdinand Enke 1898 pp.233-296, softcover, 25cm., Good condition, in the series "Sammlung Chemischer und chemisch-technischer Vorträge" III.Band Heft 7-8, W77214‎

‎Nettoyage, détachage, dégraissage, blanchiment, blanchissage - Nouvelle collection de recueils de recettes traditionnelles - 2e édition entièrement refondue.‎

‎H.Desforges. 1924. In-12. Broché. Etat passable, 1er plat abîmé, Dos abîmé, Papier jauni. 308 pages - 1er plat absent - coiffe en pied absente - coiffe en tête abîmée - manque une partie du dos - 2eme plat tâché et jauni - tampon sur le 2eme plat.. . . . Classification Dewey : 540-Chimie et sciences connexes‎

‎ Classification Dewey : 540-Chimie et sciences connexes‎

‎Englands Handelskrieg und die Chemische Industrie. Neue Folge : England. Frankreich. Amerika‎

‎1 vol. in-8 reliure demi-percaline marron, Verlag von Ferdinand Enke, Stuttgart, 1917, 344 pp.‎

10 Images

‎Good condition (binding slighlty rubbed, a few foxing, ex-libris J.P. Folchi)‎

‎Die Naturwissenschaften im Dienste des Krieges. Text- und Tafelband.‎

‎Wien, L.W. Seidel (für K.K. Kriegsschule), 1878, in-4° et in-4° oblong, XVI + 426 S. / 22 Tafeln davon 20 lithogr. Tafeln mit zahlr. gestoch. Fig. (Tafel 1 mit Stempel und staubfleckig), 1 Lichtdrucktafel, und 1 Karte in photolithogr. Farbendruck, im Mitte gefalten, einige Stempel, Original-Broschüre, fleckig, Stempel und Etikette / broschiert, Titeletikette uaf Umschlag vorne, Umschlag etwas beschädigt.‎

‎Zum Gebrauch an der K.K. Kriegsschule und zum Selbstunterricht fèr Offiziere aller Waffen. Das Werk ist abgeteilt in folgenden Hauptabschnitten: 1) Aëromechanik. / 2) Optik. / 3) Elektrizitäts-Lehre. / 4) Wärmelehre. / 5) Chemie der Fäulniss und Gährung.Filipp Hess war Hauptmann im k.k. Geniestabe. ‎

‎Recherches sur les quantités de chaleur dégagées dans les combinaisons chimiques. Lettre de M. Hess à M. Arago.‎

‎(Paris, Bachelier), 1840. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome X, No. 19. Pp. (721-) 775 (entire issue offered). Hess' paper: pp. 759-763. A few scattered brownspots.‎

‎First apperance of the announcement of Hess' newly discovered law, known as Hess's Law, in form of a letter to Arago. ""Here thermochemistry received its first importent advance at the hands of Germain Hess, who showed that the heat evolved in a reaction is the same regardless of whether the reaction is carried out directly or in a number of steps..."" (Leicester & Klickstein ""A Source Book in Chemistry"", pp. 329-332). This announcement preceded the larger paper published the same year in ""Annales de Chimie et de Physique"" and the original (and larger) paper in ""Bulletin scientifique, Academie impériale des Sciences (St. Petersbourg)"". Parkinson ""Breakthroughs"" 1840 C.‎

‎Recherches thermo-chimique" (Extrait du Bulletin scientifique publié par l'Academie imperiale des Sciences de Saint-Petersbourg, tome VII)‎

‎Paris, Fortin, Masson et Cie, 1840. Contemp. hcloth. Gilt lettering to spine. In ""Annales de Chimie et de Physique"", 2me Series - Tome 75. 447,(1) pp. a. 1 plate. (Entire volume offered). Hess's paper: pp. 80-103. The first and last leaves somewhat brownspotted.‎

‎First edition in French of Hess' first fundamental law in thermodynamic: ""the law of heat formation"" (1840), anticipating a specific example of the ""LAW OF THE CONSERVATION OF ENERGY"", 2 years before Julius Robert Mayer elucidated the more general principle in 1842 - claiming that ""the heat developed in chemical change is constant, whether the change occurs directly or indirectly in several stages""Germain Henri Hess is noted today for two fundamental principles of thermochemistry: the law of constant summation of heat (known simply as Hess's law) and the law of thermoneutrality. These discoveries were remarkable in that they were postulated without any supporting theoretical framework and took place in a field of study almost totally neglected by his contemporaries. Hess's law is of immense practical importance and is used to this day to determine heats of reaction when their direct measurements are difficult or impossible. (Chemistry Encyclopedia).""Numerous men, notably Lavoisier and Laplace had measured the heats evolved in various reactions, but thermochemistry received its first importent advance at the hands ofgermain Henri Hess, who showed that the heat evolved in a reaction is the same regardless of whether the reaction is carried out directly or in a number of steps. This generalization, known now as ""Hess's Law"", makes possible the calculation of heats for many reactions where direct measurement are impracticable.""(Leicester & Klickstein, A Source Book..., p329.""The thermochemical work of Hess was continued extensively in the second half of the nineteenth century through the studies of Thomsen and Berthelot. Both Berthelot’s principle of maximum work and the thermodynamic theories of affinity which came to prevail were clearly foreshadowed in the work of Hess. In addition to his internationally known research in thermochemistry, Hess was very influential in the development of chemistry in Russia. His text Osnovania chistoy khimii (Fundamentals of Pure Chemistry) went through seven editions and did much to establish the chemical nomenclature of the Russian language. He was always interested in technological questions, and many of his students later contributed to Russia’s industrial development."" (DSB).Parkinson ""Breakthroughs"", 1840 C. - Leicester & Klickstein, A Source Book, p 329. ‎

‎Recherches thermo-chimique (Extrait du Bulletin scientifique publié par l'Academie imperiale des Sciences de Saint-petersbourg, tome VII) (+) Recherches thermochimiques" (Suite du Mémoire imprimé dans les Annales...tome LXXV). (+) Recherches thermoch...‎

‎Paris, Fortin, Masson et Cie, 1840 a. 1842. No wrappers. In ""Annales de Chimie et de Physique"", 2me Series - Tome 75 a. 3e Series - Tome 4.. With titlepage to Tome 75 and orig. printed wrappers to the issue (Septembre issue). Pp. 1-112 a. 1 engraved plate (entire issue offered). With titlepage to Tome 4. Pp. 129-256 (entire Fevrier issue) and pp. 257-384 (entire Mars issue). Hess' papers: pp. 80-103 (tome 75), pp. 211-229 (tome 4), pp. 290-316 (tome 4).‎

‎First appearance in France of Hess' two fundamental laws in thermodynamic 1: ""the law of heat formation"" (1840), anticipating a specific example of the ""LAW OF THE CONSERVATION OF ENERGY"", 2 years before Julius Robert Mayer elucidated the more general principle in 1842 - claiming that ""the heat developed in chemical change is constant, whether the change occurs directly or indirectly in several stages""and 2: ""the law of thermoneutrality"" (1842), stating, that when neutral salts exchange acids and bases in solution, the heat of the reaction is zero. - These papers were published at the same time in France and in Russia. Germain Henri Hess is noted today for two fundamental principles of thermochemistry: the law of constant summation of heat (known simply as Hess's law) and the law of thermoneutrality. These discoveries were remarkable in that they were postulated without any supporting theoretical framework and took place in a field of study almost totally neglected by his contemporaries. Hess's law is of immense practical importance and is used to this day to determine heats of reaction when their direct measurements are difficult or impossible. (Chemistry Encyclopedia).""Numerous men, notably Lavoisier and Laplace had measured the heats evolved in various reactions, but thermochemistry received its first importent advance at the hands ofgermain Henri Hess, who showed that the heat evolved in a reaction is the same regardless of whether the reaction is carried out directly or in a number of steps. This generalization, known now as ""Hess's Law"", makes possible the calculation of heats for many reactions where direct measurement are impracticable.""(Leicester & Klickstein, A Source Book..., p329.""The thermochemical work of Hess was continued extensively in the second half of the nineteenth century through the studies of Thomsen and Berthelot. Both Berthelot’s principle of maximum work and the thermodynamic theories of affinity which came to prevail were clearly foreshadowed in the work of Hess. In addition to his internationally known research in thermochemistry, Hess was very influential in the development of chemistry in Russia. His text Osnovania chistoy khimii (Fundamentals of Pure Chemistry) went through seven editions and did much to establish the chemical nomenclature of the Russian language. He was always interested in technological questions, and many of his students later contributed to Russia’s industrial development."" (DSB).Parkinson ""Breakthroughs"", 1840 C. - Leicester & Klickstein, A Source Book, p 329. ‎

‎Recherches sur les quantités de chaleur dégagées dans les combinaisons chimiques. (Lettre à M. Arago).‎

‎Paris, Fortin, Masson et Cie, 1840. 8vo. Contemp. hcalf. Spine gilt and with gilt lettering. Some scratches to spine. In: ""Annales de Chimie et de Physique"", 2e series, tome 74. 448 pp., 1 folded plate. Hess' paper: pp. 325-335. Stamps on verso of titlepage. Internally clean.‎

‎First edition of Hess's most famous paper, in which he outlined his law on thermochemistry. His principle, a progenitor for the first law of thermodynamics, came to be called Hess's law. It states that in a series of chemical reactions, the total energy gained or lost depends only on the initial and final states, regardless of the number or path of the steps. This is also known as the law of constant heat summation. Hess described here his newly discovered law, known as Hess's Law, in form of a letter to Arago. (The letter was also published in Comptes Rendus in a slightly modified form). ""Here thermochemistry received its first importent advance at the hands of Germain Hess, who showed that the heat evolved in a reaction is the same regardless of whether the reaction is carried out directly or in a number of steps..."" (Leicester & Klickstein ""A Source Book in Chemistry"", pp. 329-332). This paper preceded the larger papers also published in ""Annales de Chimie et de Physique"" and the original (and larger) paper in ""Bulletin scientifique, Academie impériale des Sciences (St. Petersbourg, 1840)"". The volume contains also papers by Laurent, Biot, Mulder, Melloni etc.Parkinson ""Breakthroughs"" 1840 C.‎

‎Contribution à l’étude analytique et biochimique des oestrogènes naturels. Dissertation.‎

‎ Liège, Georges Thone 1956, 240x160mm, 217pages, broché. Bon état. ‎

‎ illustrations in et hors texte, Pour un paiement via PayPal, veuillez nous en faire la demande et nous vous enverrons une facture PayPal‎

‎Techniques de chimie médicale / Université de Liège‎

‎Presses universitaires de Liège 1952 in8. 1952. Broché.‎

6 Images

‎Bon état de conservation couverture défraîchie intérieur propre‎

‎LES ASSOLEMENTS ET LES SYSTEMES DE CULTURE‎

‎HACHETTE. 1862. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 534 pages illustrées de quelques gravures dans le texte... . . . Classification Dewey : 631.4-Science des sols : chimie, physique, fertilité‎

‎Ouvrage orné d'un grand nombre de vignettes sur bois. Classification Dewey : 631.4-Science des sols : chimie, physique, fertilité‎

‎Das Element Hafnium. Mit 23 Abbildungen.‎

‎Berlin, Springer, 1927. Uncut in orig. printed wrappers. 49,(1) pp.‎

‎First edition. - When Hevesy together with Dirk Coster began the radiographic examination of Zirconium ores, and were able to demonstrate in them the line of an unknown element, which they then isolated chemically in the form of a flouride. They named it after the Latin name of Copenhagen.(DSB VI: 366) - Hevesy was awarded the Nobel Prize in 1943 in chemistry.‎

‎La coacervation des coacervats et leur importance en biologie TOME II - exposés de biologie VII‎

‎Hermann et cie 1936 in8. 1936. Broché.‎

5 Images

‎Bon état couverture défraîchie bords frottés intérieur propre ex-libris raturé sur la 1re de couverture‎

‎La diversité humaine en Afrique subsaharienne - recherches biologiques - Etudes ethnologiques‎

‎Université libre de Bruxelles 1968 in4. 1968. Cartonné. document dépliant in-fine‎

6 Images

‎garniture un peu décollée sur le dos livr légèrement déformé ternissures au début du livre intérieur propre par ailleurs‎

‎Chimie industrielle des corps gras et des cires‎

‎Hermann & Cie 1947 In-4 16,5 x 25 cm. Broché sous couverture imprimée, 519 pp. Pliures sur le dos. exemplaire en bon état. Nature chimique des corps gras. - Composition des corps gras naturels. - transformation des corps gras en vue de leur uitilisation industrielle. - Industrie des graisses alimentaires. - Industrie des savons. - Emploi des corps gras dans l’éclairage. - Production de glycérine à partir de corps gras. - Emploi des corps gras et des cires dans les peintures, vernis et autres revêtements. - Application des corps gras aux fibres. - Lubrifiants Gras.‎

‎ Bon état d’occasion ‎

‎Les procédés catalytiques en chimie appliquée‎

‎Dunod. 1930. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 320 pages. Quelques croquis en noir et blanc, dans le texte.. . . . Classification Dewey : 540-Chimie et sciences connexes‎

‎Traduit par E. Midorge. Classification Dewey : 540-Chimie et sciences connexes‎

‎Les alliages métalliques‎

‎Paris, Steinheil 1900 xii + 442 + [1] pp., 25cm., texte en français (traduit de l'anglais et augmentée d'un appendice par O. Boudouard), reliure cart., dos en cuir brun avec titre doré, feuilles de garde marbrées, texte frais, bon état, W104344‎

‎Recherches expérimentales et analytiques sur les lois de l'écoulement et du choc des gaz en fonction de la température‎

‎Bruxelles, Académie royale (impr.par Hayez) 1886 217pp.+ 3 planches hors-texte dépliantes, Mémoire présenté à la classe des sciences dans la séance du 11 octobre 1884, publié dans et extrait de "Mémoires couronnés et mémoires des savants étrangers publiés par l'Académie Royale des sciences, des lettres et des beaux-arts de Belgique" Tome XLVI (46), in-4, non coupé, br.orig., W76632‎

‎Mémoire sur la thermodynamique ‎

‎Paris , Gauthier-Villars , 1867 , in-8 , 172 pp , illustré de 2 planches dépliantes in-fine , relié demi-veau époque , dos lisse avec auteur et titre , «extrait des annales de chimie et physique , 4éme serie, T. XI», bel exemplaire.‎

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‎Gustave-Adolphe Hirn, est un industriel et physicien français connu pour ses travaux sur thermodynamique. P2-6C‎

‎The Transport and Handling of Mineral Acids‎

‎Ernest Benn, 1926 "12 x 19, 140 pp., 24 figures, cartonnage, Bon état - dos reliure usé; qques coins pliés"‎

‎acid-resisting materials - handling of acids - pipe lines - storage vessels - transport‎