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(London, W. Bulmer and Co., 1813). 4to. No wrappers as extracted from "Philosophical Transactions" 1815 - Part I. Pp. 1-8 a. 1 engraved plate. First appearance of an importent paper in optics in which Brewster describes some of the experiments that lead him, in the next two years, to his discoveries of "Brewster's Law" and to his distinction between Biaxial and Uniaxial crystalline structures.

Kiøbenhavn, Schultziske Officin, 1818-22. 4to. 3 velbevarede, næsten samtidige hldrbd. med rig rygforgyldning. Et navn bortklippet fra øverste margin af titelbladene, uden tab af tekst. LVI,332;378;390 pp. Indvendig ren og frisk.

Kjøbenhavn, Rangel, 1817. Lille 8vo. (11,7x9 cm). Ubeskåret og uopskåret i den originale bogtrykte kartonnage. Enkelte spredte brunpletter eller ren indvendig. Med stor udfoldelig håndkoloreret frontispice. 101 pp. Et særdeles nydeligt eksemplar af første hæfte af Skjemt og Satire med den kendte karikerede afbildning af Baggesen, der træder Oehlenschläger over tæerne.Baggesen - Oehlenschläger - fejden optog i tiden størstedelen af Danmarks litterater. Den litterære verden inddeltes i dem, der var for Baggesen, og dem, der var for Oehlenschläger. Bibl. Dan. IV, 528.

Leipzig, Schwickertschen Verlage, 1803-08. Bound in 3 contemp. hcalf. Gilt spines, tome- and titlelabels with gilt lettering. A paperlabel pasted on upper part of spines. Stamps on title-pages. Spines slightly rubbed. VIII,944,(2);(2),956,(6);(2),933,(3) pp. and 24 folded engraved plates. Scattered brownspots. First edition. These 3 volumes by Klügel were much later supplemented by C.B. Mollweide. - Poggendorff I, 1277.

Franckfurt, Johann Pressii, 1646. 8vo. Contemp. full vellum. Wear to edges of vellum-covers.Engraved titlevignette. 384 Ff + Index. Internally fine.

Kjøbenhavn, Schultz, (1851). 4to. Samtidigt hshirtbd. (2),77,75,(3) pp. samt 1 stort kobberstukket foldekort med grænsekolorering (21 x 65 cm.) "Karte zur Bezeichnung der Grenze zwischen den Herzogthümern Schleswig und Holstein."

(Paris, Moutard, Panckoucke, 1780). 4to. Extract from "Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans", Tome IX. Pp. 593-624 and 2 folded engraved plates. Clean and fine. First appearance of an importent papwer in the history of analytic geometry."In this article Tinseau gave an interesting generalization of the Pythagorean theorem for space of three dimensions: the square of the area of a plane surface is equal to the sum of the squares of the projection of this surface upon three mutually perpendicular coordinate planes....To Tinseau it appears that the use of the word "conoid" in the modern sense is due."(Boyer "History of Analytic Geometry, p. 207)."Two of the three memoirs that constitute Tinseau’s oeuvre deal with topics in the theory of surfaces and curves of double curvature: planes tangent to a surface, contact curves of circumscribed cones or cylinders, various surfaces attached to a space curve, the determination of the osculatory plane at a point of a space curve, problems of quadrature and cubature involving ruled surfaces, the study of the properties of certain special ruled surfaces (particularly conoids), and various results in the analytic geometry of space. In these two papers the equation of the tangent plane at a point of a surface was first worked out in detail (the equation had been known since Parent), methods of descriptive geometry were used in determining the perpendicular common to two straight lines in space, and the Pythagorean theorem was generalized to space (the square of a plane area is equal to the sum of the squares of the projections of this area on mutually perpendicular planes). (DSB). Although Tinseau published very little, his papers are of great interest as additions to Monge’s earliest works. Indeed, Tinseau appears to have been Monge’s first disciple.

Zürich, Meyer und Zeller, 1844. 8vo. Contemp. hcalf. Richly gilt spine. Spine with tears along upper and lower hinges, spine ends worn. Covers still firm. VIII,469,(1) pp. and 8 lithographed plates, some folded). A faint stamp to titlepage and a stamp to page VII. Text clean, plates with some scattered brownspots. A few old annotations.

Leipzig, Hinrichs, 1802. Contemp. hcalf. Titlelabel with gilt lettering. Stamp on title-page. (2),222 pp. Some scattered brownspots.

Prague, 1926-27. 358 pp., and 24 coloured plates. Vejdovsky's cytological and embryological studies belong to the classical beginnings of modern cytology and embryology.

København., Udgivet af Den danske Radeerforening, 1935. 4to. Orig. bogtrykt omslag. ed smudsomslaget der er lidt flosset øverst. VII, 21 pp. Oplag: 500 ekspl. Indvendig helt frisk eksemplar.

(Leipzig, Barth), 1912. No wrappers. In: "Annalen der Phsyik", 4th series, vol. 39, No. 14. Pp. 705-896 (entire issue offered). debye's paper: pp. 789-839. Clean and fine. First edition"In his second outstanding paper (the offered item) Debye treated a solid as a system of vibrating atoms and modified Einstein's theory of specific heats, which had been only partially successful. He showed that the solid could be characterized by a complete spectrum of eigen-frequencies and that the specific heat of a monatomic solid was a universal function of the ratio theta/T, were theta is a tempature characteristic of the particular solid and T is the absolute tempature. Now commonly called the Debye temperature, theta could be calculated from the elastic constants of the solid. The Debye equation, involving the then recently developed quantum theory, gave agreement with observed specific heat values. Aside from a numerical factor, it differed from the Einstein equation in containg both the compressibility and and Poisson's ratio." - Dictionary of Scientific Biography, volume 3, p.619.

(London, W. Bulmer and Co., 1807 a. 1809). 4to. No wrappers as extracted from "Philosophical Transactions" 1807 - Part I. Pp. 180-233 a. 1 engraved plate., pp. 259-302 a. 3 large folded engraved plates. First appearance of the 2 first papers in which Herschel tried to establish his own theory of light."In a less happy venture into the physics of light, Herschel devoted three papers (1807-1810)- the two first offred here - to investigating the cause of colored concentric rings ("Newton's rings"). Ignoring the explanation already given by Thomas Young wherby the rings result from interference between light waves, Herschel ceriticized Newton' theory and attempted one of his own. he brought down on his head a storm of criticism, and this may have been a cause of his poor health at this period."(DSB VI, p.333).

(Paris, Fortin, Masson et Cie, 1840). 8vo. Without wrappers. In: 'Annales de Chimie et de Physique', 2e Series, tome 73, Cahier 3. Pp. 225-336 (entire issue offered). Savart's paper: pp. 225-273 and 2 large folded engraved plates, showing 110 vibration patterns. Some browning to first and last leaf. Scattered brownspots. First printing of Savart's importent paper on the vibration of plates in which he greatly extended the investigations done by Chladni. The paper is an abstract, but was not published otherwise.Savart made experimental studies of many phenomena involving vibration. With Biot he showed that the magnetic field produced by the current in a long, straight wire is inversely proportional to the distance from the wire. In most of his vibrational studies Savart observed the nodal lines of vibrating surfaces and solids, and he thereby obtained information on vibrational modes and elastic properties.He also greatly extended Chladni's observations of the modes of plates: adding a dye to the sand, he made prints of the nodal patterns for brass plates in the shapes of circles, ellipses, and polygons. Savart was able to locate directly the nodes of a vibrating air column by lowering a light membrane covered with sand into a vertical pipe.

Kjöbenhavn, Bianco Luno, 1849. 4to. No wrappers. In: "Det Kongelige Danske Videnskabernes Selskabs Skrifter".Titlepage. a. pp. 153-322. Clean and fine. A classic study of the Ferns of Mexico. - Stafleu & Cowan: 4512.

Coloniae, Ioannes Crithius, 1620. 12mo. Bound in a beautiful black full calf binding with richly gilt spine and gilt borders with corner-ornamentation to boards. Gilding very vague. Six gilt fleurs de lis to spine. Edges of boards and all edges gilt. Closely trimmed, here and there affecting text. Ownership signatures to front free endpaper and title-page (dated 1712). Lower right corner of title-page reinforced from verso. A few scattered brownspots. Housed in a 19th century vertical full calf case. 273, (13) pp.

(Paris, Crochard, 1839) No wrappers. In: "Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago.", tome 72, Cahier 2. Pp. 113-224 (the entire issue offered). Gerhardt's papers: pp. 163-183 and pp. 184-215. First printing of two importent papers, the first paper is Gerhardt's first work, having the same subject as his doctoral theisis, 1840. The second paperis a classic study in organic chemistry in which Gerhardt breaks with the conceptions of dualism and pre-existing radicals, and sets forth his "Theory of Residues". "A new aspect was given to the substitution-type theory by Gerhardt, who explained the formation of organic compounds as due to "pairing" or "copulation" of residues."(Findlay "A Hundred years of Chemistry" p. 30 ff).

Berlin, J.F. Unger, 1794. Contemp. hcalf. Wear to spine and titlelabel gone. Top of spine taped. Stamp on titlepage. XX,368 pp. and 2 folded engraved plans. Some light foxing and scattered brownspots.

Oslo, Selskapet til utgivelse af Gamle Norske Håndskrifter, Folio. Orig. hldrbd. i kassette. 124 pp. (Corpus Codicum Norvegicum Medii Aevi, Quarto Serie Volume V).

Leipzig, Johann Ambrosius Barth, 1836.. Without wrappers as issued in "Annalen der Physik und Chemie. Hrsg.von Poggendorff", Bd. 37, Erstes Stück. Pp. 1-240. Entire issue offered. Von Buch's paper: pp. 169-190 a. 1 engraved plate. (Showing Strabo's Vesuv and Plinius's). First printing of an importent paper on volcanoes, the science of which was von Buch's preferred in geology. He began as a Wernian, but gradually passed into the ranks of the Vulcanists.

London, 1776. Cont.hcalf. Gilt back. Hinges in lower part of back cracking. IV,411 pp. Brownspotted throughout.

Prag, Johann Gottfried Calve, 1815. Uncut in orig. marbled boards. Spine with nicks in the thin paper. Handwritten paperlabel to spine. (6),VI,249,(4);176,(1) pp. A few small brownspots. Internally fine and clean.

Brusselles, Jean de Smedt, 1705. 12mo. Contemp. full vellum. Engraved frontispiece. (14),471,(1) pp. and 5 engraved plates. Fine and clean copy.

Stuttgart u. Leipzig, Cotta'schen Buchhandlung, 1822. Small 8vo. 2 contemp. hcalf, gilt. Backs slightly rubbed. Stamp on titlepages. Engraved frontisp. XX,493,(1);(2),482 pp., 1 litographed plate, 1 facs. Brownspotted.

Neumünster, 1959. 4to. Orig.cloth. With dedic. 528 pp. a. 141 plts.,large fold.map.