Kjøbenhavn, Gyldendal, 1883. 8vo. In later half cloth with the original printed front wrapper pasted on to front board. Offprint from ""Aarbøger for Nordisk Oldkyndighed og Historie"", 1883. A very nice and clean copy. 160 pp. + 5 folded maps. 
Kjøbenhavn, Bianco Luno, 1889. 8vo. In the original printed board. ""Fra Forfatteren"" (i.e. English: ""From the Author"") printed to upper right corner of front board. Offprint from ""Det Kongelige Danske Videnskabers Selskab"". Light browning to binding, paper on spine partly detached. Exlibris pasted on to verso of front board. Internally nice and clean. XII, 68 pp. + 1 plate. 
Kjøbenhavn, Bianco Luno, 1893. 4to. Bound uncut, unopened with the original printed wrappers in recent blue boards. In ""Videnskabernes Selskabs Skrifter"". A very nice and clean copy. Pp. 307-448 + 4 folded plates. 
Kjøbenhavn, Bianco Luno, 1875. 4to. Bound uncut, unopnened with the original printed wrappers in recent blue boards. In ""Videnskabernes Selskabs Skrifter, Nat.Vid. og Math. Afd., 5. Rk, Bd. 10,VII"". A nice and clean copy. pp. 465-482, III + 2 plates. 
Kjøbenhavn, Bianco Luno, 1900. 4to. Uncut unopened with the original printed wrappers in recent blue boards. In ""Kgl. Danske Vid. Selsk. Skrift."", 6. R., Nat. Afd., IX (6)). Fine and clean. Pp. (5), 288-300 pp. + 1 plate. 
Kjøbenhavn, Bianco Luno, 1881. 4to. Bound uncut, unopened with the original printed wrappers in recent blue boards. In ""Videnskabernes Selskabs Skrifter. Fine and clean copy. Pp. (3), 214-242 pp. + 1 plate. 
Kjøbenhavn, Bianco Luno, 1895. 4to Bound uncut and unopened with the original wrappers in recent blue boards. A very nice and clean copy. (7), 320-434, (2) pp. + 6 folded plates. 
Kbhvn., 1895. 4to. Orig. helshirtbd. med blindtryk og guldtryk. (117) pp. Fint frisk eksemplar i originalbindet.
(København, 1881) 4to. Uden omslag som udkommet i ""Videnskabernes Selskabs Skrifter"" pp. 211-242 samt 1 kobberstukket planche med mange figurer.
Kjøbenhavn, Bianco Luno, 1875. 4to. Uden omslag. Ubeskåret. Fra Videnskabernes Selskabs Skrifter, Nat.Vid. og Math. Afd., 5. Rk, Bd. 10,VII. Titelblad. pp. 465-482,III samt 2 litograferede plancher.
Kjøbenhavn, Bianco Luno, 1893 og 1895. 4to. Et samtidigt hldrbd. med rygforgyldning. En smule slid i kanter. Stempel på titelblad. (2),140 pp., 7 foldeplancher med mange firgurer, tekstillustr. - (4),116 pp. samt 8 foldeplancher emd mange fig., tekstillustr. Indvendig ren og frisk. Begge særtryk af Videnskabernes Selskabs Skrifter.
Kjøbenhavn, Gyldendal, 1883. Orig. bogtrykte omslag, ubeskåret. (160) pp., 5 udfoldelige kort, det første kobberstukket. (Aarbøger for Nordisk Oldkyndighed og Historie 1883), Andet Hefte.
Copenhagen, Bianco Lunos, 1842. 4to. Recent half cloth with contemporary marbled boards. Light browning throughout. Small ink signature on title-page. IV,76 pp. and 3 double-page, folded lithographed plates with many figs. Withbound: Steenstrup, Undersögelser over Hermaphroditismens Tilværelse i Naturen, 1845. XIV,88 pp. and 1 plate.
The scarce first edition of the work in which Steenstrup describes his discovery of the principle of 'alternation of generations', sexual and asexual in plants and animals. ""(Steenstrup) showed that certain animals produce offspring which never resemble them but which, on the other hand, bring forth progeny which return in form and nature to their grandparents or more distant ancestors."" (Garrison & Morton No 217). A German translation was published the same year, and an English in 1845. Norman 2009 (German translation). ""The second major publication - (the first dealing with geology) - of 1842 was ""Om Forplantning og Udvikling gjennem vexlende Generationsrækker..."", (the work offered), Steenstrup's comprehensive presentation of the form of reproduction that he called 'alternation of generations', that is, the alternation of asexual and sexual reproduction, or metagenesis. This phenomenon had previously been described by Chamisso, but Steenstrup included a greater number of observations, based on a significantly wider range of subjects, and provided an importent chapter on its meaning. Steenstrup's growing reputation, won him an appointment as professor of zoology at the University of Copenhagen, where he tought from 1846 until 1885.""(DSB XII, p. 9).
Copenhagen, Bianco Lunos, 1842. 4to. Bound in the original boards with silver stained papercovers. Some nicks to backstrip. Margins of covers having the silver-staining toned down (oxidation). Edges gilt. As it is printed on ""vellum-paper"" and edges gilt, it is probably one of the gift copies, but unsigned. IV, 76 pp. and 3 double-page, folded lithographed plates with many figs. Light marginal browning to plates, otherwise fine.
The scarce first edition of the work in which Steenstrup describes his discovery of the principle of 'alternation of generations', sexual and asexual in plants and animals. ""(Steenstrup) showed that certain animals produce offspring which never resemble them but which, on the other hand, bring forth progeny which return in form and nature to their grandparents or more distant ancestors."" (Garrison & Morton No 217). A German translation was published the same year, and an English in 1845. Norman 2009 (German translation). ""The second major publication - (the first dealing with geology) - of 1842 was ""Om Forplantning og Udvikling gjennem vexlende Generationsrækker..."", (the work offered), Steenstrup's comprehensive presentation of the form of reproduction that he called 'alternation of generations', that is, the alternation of asexual and sexual reproduction, or metagenesis. This phenomenon had previously been described by Chamisso, but Steenstrup included a greater number of observations, based on a significantly wider range of subjects, and provided an important chapter on its meaning. Steenstrup's growing reputation, won him an appointment as professor of zoology at the University of Copenhagen, where he taught from 1846 until 1885."" (DSB XII, p. 9).
"STEENSTRUP, JOHANNES JAPETUS SMITH. - THE DISCOVERY OF ""ALTERNATION OF GENERATIONS''.
Reference : 45440
(1842)
Kjöbenhavn, Bianco Luno, 1842 a. 1845. 4to. Bound in one contemp. halfcalf, spine gilt. A small tear to backhinge at lower compartment of spine. IV,76 pp. and 3 double-page, folded lithographed plates with many figs. + XIV,88 pp. and 2 double-apge lithographed plates with many figs. Light browning to the last leaves of the second work.
The scarce first edition of the work in which Steenstrup describes his discovery of the principle of 'ALTERNATION OF GENERATIONS'', sexual and asexual in plants and animals. ""(Steenstrup) showed that certain animals produce offspring which never resemble them but which, on the other hand, bring forth progeny which return in form and nature to their grandparents or more distant ancestors."" (Garrison & Morton No 217). A German translation was published the same year, and an English in 1845. Norman 2009 (German translation). ""The second major publication - (the first dealing with geology) - of 1842 was ""Om Forplantning og Udvikling gjennem vexlende Generationsrækker..."", (the work offered), Steenstrup's comprehensive presentation of the form of reproduction that he called 'alternation of generations', that is, the alternation of asexual and sexual reproduction, or metagenesis. This phenomenon had previously been described by Chamisso, but Steenstrup included a greater number of observations, based on a significantly wider range of subjects, and provided an importent chapter on its meaning. Steenstrup's growing reputation, won him an appointment as professor of zoology at the University of Copenhagen, where he tought from 1846 until 1885.""(DSB XII, p. 9). 
Kjöbenhavn, Bianco Luno, 1853. 4to. Uncut, unopned in the original blue boards. Offprint from ""Det Kgl. Danske Videnskabernes Selskabs Skrifter"". Nice and clean. 14 pp. + 1 plate. 
Offprint of Steenstrup's paper in which he provided a formal description of the genus Rhizochilus and the iconic plate illustrating the taxon
Kjöbenhavn, Bianco Luno, 1853. 4to. Uncut, unopned in the original blue boards. Offprint from ""Det Kgl. Danske Videnskabernes Selskabs Skrifter"". Nice and clean. 14 pp. + 1 plate. 
Offprint of Steenstrup's paper in which he provided a formal description of the genus Rhizochilus and the iconic plate illustrating the taxon
Kjöbenhavn, Bianco Luno, 1841. 4to. Originalt papbd., rygstrimlen mangler. Særtryk af Videnskabernes Selskabs Skrifter. (2),104 pp.,8 tekstillustrationer i træsnit. Indvendig ren og frisk. Med dedikation på fribladet ""Min kjære Broder/ Auditeur M.W. Steenstrup/ ""som er den ældste, fører evig.... (?) an""/ med broderlig Hengivenhed/ fra/ Forfatteren./ Sorøe d. 10 Martz 1842"".
Originaltrykket (særtrykket) af et af mosegeologiens pioneerværker. 
(København, 1856). 4to. Uden omslag. Udkom i ""Videnskabernes Selskabs Skrifter"". (32) pp. samt 2 litograferede plancher med mange figurer.
Københavns, 1856. 4to. Uncut unopened in the original blue boards. Offprint from ""Videnskabernes Selskabs Skrifter"". A nice and clean copy. 31, (1) pp. + 2 engraved plates. 
First printing of Steenstrups classic work on the octopods, where he for the first time disclosed the findings of a male arm filled with seminal fluid in the female. This object was, before Steenstrups finding, considered as a parasitic worm.
Kjöbenhavn, Bianco Luno, 1845. 4to. In recent blue boards. Stamp to first two leaves. With a few occassional brownspots. Small repair to upper margin of title-page, far from affecting text. XIV, 88 pp. + 2 folded plates. 
First edition. Published on the occasion of King Christian VIII's birthday celebration at Sorø Academy.
Kbhvn., 1845. 4to. Uden omslag. XIV,88 pp. samt 2 litograferede foldetavler. Nogle brunpletter, særligt forrest og bagerst.
Originaludgaven. Udgivet i Anledning af Chr. VIII's Fødseldagsfest paa Soröe Academie).
Copenhagen, Bianco Luno, 1898. 4to. No wrappers. In: ""Kongelige Danske Vienskabernes Selskab"", 6. Række, Afd. IX, 1. Titlepage a. pp. 1-104, many textillustr. in woodcut a. 4 fine litrhographed and engraved plates. A faint dampstain to right margins of plates.
A classic work on sunfisk, Molidae.
(Kjøbenhavn, 1859). 4to. Uden omslag, som udgivet i ""Videnskabernes Selskabs Skrifter"", Titelblad + pp.411-455 samt 4 tonede litografier.