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Paris, Chez tous les Marchands de Nouveautés, 1840. Contemp. hcalf. Spine gilt and giltlettering. Stamps on titlepage. XV,214,(1) pp. and 3 large folded lithographed plates. The first and last few leaves a bit brownspotted, mainly marginal. First edition. The author describes telegraphy by day with semaphore telegraphy and by night with lamps. His own inventions are depicted on the 3 large folded plates. - Wheeler Gift: 978.

Dessau, Societé typographique, 1782. Bound in fine contamp. full mottled calf, raised bands and profusely gilt spine with gilt lettering. A small paperlabel pasted on lower part of spine. Gilt borders on covers, edges of covers gilt. XXIV,502,XV pp., 7 large folded engraved plates. Clean and fine. First edition.

London, Longmans & Co., 1912. Folio. Fine private full cloth. XVI,136 pp. and platevolume: VI pp. and 107 + 26 plates. Clean and fine.

Copenhagen und leipzig, Otto Christoph Wentzel, 1748. Contemp. full sprinkled calf. Richly gilt spin, titlelabel with gilt lettering. Wear to top of spine. A small nick to lower compartment. Corners bumped. Lower right corner on frontcover lacks a bit of leather. (32),616 pp. A bit of blank paper in inner margin of titlepage lacks, no loss of letters. Old name on title-page. A bit of marginal browning, but internally clean. First (and only) German edition of "Naturens og Folke=Rettens Kundskab". - Ehr.-M. X:70.

München, E.A. Fleichmann, (1826). 4to. Contemp. marbled boards. Spine and part of covers a bit faded. 72 pp. Very light browning and a few scattered brownspots. First edition. Baader was one of the first railway-ingenieurs in Germany and he constructed the first railway in Bavaria.

Leipzig, Johann Ambrosius Barth, 1897. No wrappers. In "Annalen der Physik und Chemie, Neue Folge", Bd. 60, No 3. Pp. 401-576, textillustr. and 2 folded plates. (the entire issue offered, "Heft 3"). Braun's paper: pp. 552-559 a. 6 textillustrations (showing the Braun tube and its operations). Clean and fine. First printing of this groundbreaking paper being the first description of the principles governing the "BRAUN TUBE", which moves the elctron beams of alternating voltage, the principle on which ALL TELEVISON TUBES operate. - Braun shared the Nobel Prize for 1909 with Marconi "in recognition of their contributions to the development of wireless telegraphy"."Cold cathode tube with side anode, annular diaphragm to control spot size, and built-in fluorescent screen. Beam deflection by one external coil with the trace viewed indirectly in a rotating mirror, or by two coils at right angles for direct viewing. Excitation by hand-drive influence machine (friction generator) or by an induction coil. This "indicator tube", which enabled Braun to demonstrate how a variety of periodic and transient electrical phenomena could be visually examined, is the ancestor of electric oscilloscopes, televison picture tubes, and other electron-beam display devices."( Shiers & Shiers "Early Televison. A Bibliography to 1940", No. 263)."The first oscilloscope, or Braun tube, was introduced in 1897. In order to study high-frequency alternating currents Braun used the alternating voltageto move the electron beam within the cathode tube. The trace on the face of the cathode tube represented the amplitude and frequency of the alternating-current voltage. He then produced a graph of this trace by use of a rotating mirror. The Braun tube was a valuable laboratory instrument, and modifications of it are a basic devise in electronic testing and research. The principle of the Braun tube, moving a electron beam by means of alternating voltage, is the principle on which all televison operate."(DSB II, pp. 427-428).In 1909 he shared the Nobel Prize for physics with Guglielmo Marconi for their development of wireless telegraphy.

(Paris, Crochard, 1822). No wrappers. In: "Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago.", Tome 20 (Premier Cahier) Pp. (5-) 112 a. 1 engraved plate. (Entire issue offered). Ampère's paper: pp. 60-74 a. 1 engraved folded plate depicting apparatus. Some brownspots to the plate. First apperance of this importent paper in which Ampère his creation of a new kind of electric motor where he succeeded in spinning a cylindrical magnet around its axis by connecting it to a battery generating a steady current.With the invention of the battery (Allessandro Volta, 1800), the generation of a magnetic field from electric current (Hans Christian Oersted, 1820) the foundation for building electric motors was laid.Togetner with this paper comes the importent paper in which Ampère introduced his "LAW OF FORCE", the force which exists between two current elements. - Extract from the same volume of "Annalen", pp. 398-421. The text refers to the plate attached to the first paper offered here.

Leipzig, J.C. Hinrischen Buchhandlung, 1837. Lex8vo. Orig. boards with the orig. printed titlelabel pasted on frontboard. Small scratches to lower part of spine. 32 pp. and 42 engraved plates. A few faint marginal brownspots to margins of text and plates First edition. The plates depict a great amount of construction details in building with wood.

Weimar, Landes=Industrie=Comptoirs, 1804. Unbound, but stitched. XX,440 pp. and 1 folded engraved map "Charte von Ceylon. Nach Arrowsmith...Weimar 1803".A few scattered brownspots. Occasional light browning. Map with a tear, no loss. Map with lightr yellowing. (Bibliothek der neuesten und wichtigsten Reisebeschreibungen...hrsg. von M.C. Sprengel, 15. Bd.: 2. Theil). Having the general series-titlepage, this with a stamp.

Bruxelles, Lemaire, 1794-99. 4to. Bound in one, a bit later, hcalf. Gilt spine. Tome- and titlelabels with gilt lettering. Neath repairs to spine. XXIII,282,(6);XXVI,242,(6) pp., 3 folded engraved plates. + (4),54 pp. Internally clean and fine. Poggendorff II,288.

Mantova, Alberto Pazzoni, 1797-1800. Large 4to. Contemp. hvellum and contemp. boards. A tear to first volume at upper hinge. 520,36;(2),364,20,(2) pp. With folded genealogical tables. in vol. I.

Leipzig, Göschen, 1805. Cont.hcalf. Back with traces of use. (2),480,(2) pp. On good paper, but some pages brownspotted. - First German edition translated by G.F.W. Goethe. The book has belonged to the Danish poet Chr. Richardt and bears his name.

Amsterd., 1748. Cont.hcalf. Richly gilt back. Tear in top of spine. (4),XXVI,207,190,(32) pp. and 9 fold. engr. plates.

Antwerpen, Christopher Plantin, 1585 a. 1584. 4to. Bound in one later full calf. Rebound to style preserving frontcover with doubleline gilt border with large gilt and crowned cornerpieces. Raised bands, blindtooled compartments and titlabel with gilt lettering. Endpapers in colours. (8),175,(1),88) pp., 2 large folded engraved plates (cut close and strenghtened on verso, of 4 ?) and 12 full-page text-engravings (A-M). With printers large woodcut device on title-page. Light browning to title-page and faint scattered brownspots. Second work: 98 pp. Text to part one complete, but missing the 2 Index-leves. With 2 folded engraved plates (Colloseum, exterior and interior, both cut close and strenghtened on verso). Light yellowing to leaves. Both works in the first illustrated edition. The work deals with the combats of gladiators and shows their weapons and equipments in combat scenes. The second work deals with Roman amphiteaters, particularly the Colloseum.

London, E. Hodson, 1794. 4to. Cont. hcalf, gilt and gilt lettering to spine. Hinges neathly repaired. Corners a little bumped. Engraved portrait of Linné (J. Heat sculp.) as frontispiece. XXXVIII,435 pp. Large copy with broad margins. Internally fine and clean, a few leaves with brownspots, mainly in margins. First English edition. Soulsby: 2627.

Kjøbenhavn, Gyldendal, 1902-05. 4to. Samtidigt hldrbd. Ryg fornyet og den oprindelige ryg bevaret, men ryggen er noget slidt. Indre false forstærkede. Rygforgyldning og rygtitel. Stempel på titelbladet. (4),VI,730,XXII pp. Rigt tekstillustreret, 15 plancher, 1 stort foldekort. 4 blade i "Efterskrift" reparerede i kanter.

Leipzig, Veit & Comp., 1901-03. Lex8vo. Bound in 2 contemp. hcloth. Gilt lettering to spines. XII,648;XIV,752 pp., textillustrations and 12 colourplates. Internally fine and clean. First edition og this classic work in genetics, where de Vries further develops the theory of mutations.- "De Vries experimental work in the 1890' led to the rediscovery of Mendel's laws and the discovery of the phenomenon of mutation. The rediscovery of Mendel's laws was announced almost simultabeously by de Vries, Correns, and Tschermak-Seysenegg - in that order....The results of his more than ten years of experimentation and study were laid down in de Vries's "Die Mutationstheorie....(1901-1903), in which he described in detail his work on the segregation laws, on phenomena of variation, and on plant mutations. The book made him famous, and he was recognized as one of the foremost botanists of his time."(DSB)."De Vries discovered, revealed, and proved the importence of Mendel's work. Advanced the theory of "mutations" or discontinous change in the character of species."( Horblit. One Hundred Books famous in Science, No. 73 b). - Dibner. Heralds of Science No 36. - Garrison & Morton No 240. - Sparrow. Milestones of Science No 194.

London, John Murray, 1923-14. 8vo. Bound in 6 orig. full cloth. Top edge gilt. Frontispieces and many plates.

Paris, Courcier, 1810-19. 4to. Bound in 3 uniform contemp. hcalf. Richly gilt spines. Gilt lettering on spines. Top of spine on vol. 2 with a crack. A paperlabel pasted on top of spines. Stamps on title-pages. (4),LVI,652,(2);XXI,(1),816,(4);XXIV,771,(5) pp. and 10 folded engraved plates. A few scattered brownspots. Poggendorff I, 1340.

Weimar, Landes=Industrie=Comptoirs, 1810.. Bound in 2 contemp. hcalf.Spine gilt, tome-and titlelabels with gilt lettering. Slightly rubbed. X,VIII,406;VIII,668 pp. A few scattered brownspots.. First German edition. (Bibliothek der neuesten und wichtigsten Reisebeschreibungen...Hrsg. von M.C. Sprengel fortgesetzt von T.F. Ehrmann. 41 + 42.. Bd.). - Withbound in vol. 1: Speeleveldt,T. Briefe über die Insel Walcheren. Aus dem Holländischen übersetzt und mit einigen Anmerkungen begleitet."136 pp.

(Paris, n.d., 1785). Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on upper part of spine. Stamps on title-page. Slightly rubbed. (2),384,XVIII,(1) pp., 6 large folded engraved maps, plans, profiles etc. A closed tear to one folding in one plate.

Kiøbenhaffn, Daniel Paulli, 1677. Nyere marmoreret papbd. (16) pp. På indersiden af bagpermen er indsat en samtidig håndskrevet recept på en yderligere kur mod pesten, dog kun bevaret delvist. Yderst sjældent pestskrift, som blev udsendt til lægerne til behandling under den store pestepidemi 1677.

London, M. Flesher, 1687. Small 8vo. Bound in a later modest hcloth. (24),(4),70 pp., 7 engraved plates (4 folding), 1 full-page engraving in the text and 2 large folded tables. Right margin a bit shaved. Light browning to titlepage and the first leaves. Groenveldt was a famous lithotomist, using the suprapubic technique. He changed his name to Greenfield when he came to England from Holland. (Garrison & Morton No. 4280 (Engl. ed. from 1710). - Waller No 3752.

Paris, Adolphe Reiff, 1893. Indbundet ubeskåret med orig. for-og bagomslag i et samtidigt velbevaret helshirtbd. Rygforgyldning og forgyldt titel. Bagomslaget med lidt svage pletter, ellers ren og frisk. Originaludgaven. Værket blev grundet pornografisk indhold forbudt og beslaglagt i Danmartk, Norge og Sverige.

Kjøbenhavn, 19. December 1848. Folio. (33,5 x 20,5 cm.). Samtidigt hldrbd. Stor forgyldt titeetiket i skind på forpermen. Ryg slidt. Instruktion i let læselig manuskriptform. 69 sider (= (10),59 pp.) med 23 større og mindre gevær-konstruktionstegninger i marginer. Denne instruktion er tilsendt Den Kongelige Artillerie-Brigade og approberet og underskrevet af Keÿper (og) Müller 19. December 1848 på grundlag af den instruktion som blev vedtaget af Artillerie= og Constructions=Commissionen, den 16de September 1848. Instruktione er givetvis et af få eksemplarer som er udsendt til brigaderne på grundlag af en oprindelig, ikke trykt, håndskrevet instruktion.