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Cont. hcalf. Gilt back. Back worn. Lacks upper 5 cm. of back. XII,440 pp. Somewhat brownspotted. First edition of a clasic mineralogical work. With the names on fly-leaf of 2 well-known Danish geologists: Fr. Johnstrup, Karin Callisen.

(Paris, Gauthier-Villars), 1890. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 111, No 21. Pp. (767-) 810. (Entire issue offered). Branly's paper: pp. 785-787. First appearance of the paper in which Branly announced his discovery that the electrical resistance of a granular metallic conductor could drop by several orders of magnitude when excited by the electromagnetic field emitted by an electrical spark, the so-called Branly-effect.The coherer was a key enabling technology for radio, and was the first device used to detect radio signals in practical spark gap transmitter wireless telegraphy. It became the basis for radio reception around 1900, and remained in widespread use for about ten years.

Berlin, G. Reimer, 1861. 4to. As extracted from "Journal für die reine und angewandte Mathematik, 59. Band, 1861". Without backstrip. Fine and clean. [Clebsch:] Pp. 1-62. First printing of Clebsch's early and founding paper on the symbolic method in invariant theory. The Symbolic method is based on treating the form as if it were a power of a degree one form, which corresponds to embedding a symmetric power of a vector space into the symmetric elements of a tensor product of copies of it."Clebsch completed the symbolic calculus for forms and invariants created by Aronhold, and henceforth one spoke of the Clebsch-Aronhold symbolic notation. Clebsch’s own contributions in this field of algebraic geometry include the following. With the help of suitable eliminations he determined a surface of order 11n - 24 intersecting a given surface of order n in points where there is a tangent that touches the surface at more than three coinciding points. For a given cubic surface he calculated the tenth-degree equation on the resolution of which the determination of the Sylvester pentahedron of that surface depends. For a plane quartic curve Clebsch found a remarkable invariant that, when it vanishes, makes it possible to write the curve equation as a sum of five fourth-degree powers. At the end of his life Clebsch inaugurated the notion of a "connex," a geometrical object in the plane obtained by setting a form containing both point and line coordinates equal to zero." (DSB)

Nürnberg, Johann Adam Scchmidt, 1736. Contemp. hcalf. Raised bands. Titlelabel with gilt lettering. Spine rubbed. Loss of a bit of leather at foot of spine. Engraved portrait as frontispiece. (14),661,(39) pp., 1 large folded engraved plate (Pompa Triumphalis in Funere) and 8 engraved plates with coins. Internally clean.

(København, uden trykker), 1741. Lille 8vo. Samtidigt hellæderbind. Rig rygforgyldning og titel i guld på ryg. Snittet marmoreret. (130) pp. Rigsvåbnet i kobberstik på titelbladet, kobberstukne vignetter i teksten, kobberstukne tekstillustrationer, 3 udfoldelige stamtavler, 2 plancher, 4 kobberstukne portrætter (Herluf Trolle, Hannibal Sehested, Cort Adeler, Peter Lasson). Trykt på svært skrivepapir. Med Hjalmar Hartmanns exlibris på indersiden af forpermen. Sjælden. "I 1741 udgav han en smuk lille Bog, Leben einiger wohlverdienten Dänen, som er forsynet med adskillige portrættavler og flere kobberstukne Vignetter, udført af forskellige udenlandske Kunstnere, især den tyske Kobberstikker Joh. Christoph Syring..." (Lauritz Nielsen, Rokokoen i Dansk Bogkunst, 1936, p. 12).

(London, Richard Taylor, 1834). 4to. No wrappers as extracted from "Philosophical Transactions" 1834 - Part I. Pp. 55-76 a. 1 engraved plate. First appearance of a historical paper in chemistry and physiscs in which Faraday detects a new recombination-effect in electrolysis."In the course of his experimental investigations of a general and importent law of electro-chemical action, which required the accurate measurement of thegases evolved during the decomposition of water and other substances, the author was lead to the detection of a curious effect, which had never been previously noticed, and of which the knowledge, had he before possessed it, would have prevented many of the errors and inconsistencies occurring in the conclusions he at first deduced from his earlier experiments. The phenomena observed was the gradual recombination of elements which had been previously separated from each other by voltaic action. This happened when, after water had been decomposed by voltaic electricity, the mixed gases resulting from such decomposition were left in contact with the platina wires or plates, which had acted as poles; for under these circumstances they gradually diminished in vo.umes, water was reprioduced, and at lust the whole of the gases disappeared."(Abstract) - Faraday explains the causes of this recombination.From 1831 to 1852 Michael Faraday published his "Experimental Researches in Electricity" in The Philosophical Transactions of the Royal Society. These papers contain not only an impressive series of experimental discoveries, but also a collection of heterodox theoretical concepts on the nature of these phenomena expressed in terms of lines of forces and fields. He published 30 papers in all under this general title.They represents Faraday's most importent work, are classics in both chemistry and physics and are the experimental foundations for Maxwell's electro-magnetic theory of light, using Faraday's concepts of lines of force or tubes of magnetic and electrical forces. His many experiments on the effects of electricity and magnetism presented in these papers lead to the fundamental discoveries of 'induced electricity' (the Farday current), the electronic state of matter, the identity of electricity from different sources, equivalents in electro-chemical decomposition, electrostatic induction, hydro-electricity, diamagnetism, relation of gravity to electricity, atmospheric magnetism and many other."Among experimental philosophers Faraday holds by universal consent the foremost place. The memoirs in which his discoveries are enshrined will never ceaseto be read with admiration and delight; and future generations will preserve with an affection not less enduring the personal records and familiar letters, which recall the memory of his humble and unselfish spirit."(Edmund Whittaker in A History of the Theories of Aether and Electricity).

(London, W. Bulmer and Co., 1805). 4to. No wrappers as extracted from "Philosophical Transactions" 1805 - Part II. Pp. 233-256 a. 1 engraved plate, folded. Clean and fine. First printing of an importent paper in cosmology in which Herschel's by analyzing a large number of stars, believed that he could explain the regularities he observed by assuming that the sun itself was moving toward a point in the consellation of Hercules. "Just as Copernicus had detroned the earth as the motionless center of the universe, so Herschel detroned the sun."(Asimov). - In this paper he tries to estimate the speed of the sun's motion.In a memoir published in 1783 Herschel had been occupied with the possibility that the sun was moving relative to the stars. "More than 20 years later (1805, in the paper offered) Herschel took up the question again, using six of the brightest stars in a collection of the proper motions of 36 published by Maskelyne in 1790, which were much more reliable than any earlier ones, and employing more elaborate processes of calculation; again the apex was placed in the constellation of Hercules, though at a distance of nearly 30 degr. from the position given in 1783. Herschel's results were avowedly to a large extent speculative and were received by contemporary astronomers with a large measure of distrust; but a number of far more elaborate modern investigations of the same subject have confirmed the general correctness of his work."(Berry "A Short History of Astronomy", p. 346.).

Hemburg, Perthes, (1800) 1802. 2 contemp. hcalf. Titlelabels with gilt lettering. Stamp on title-pages. (4),454;VIII,455-988,(2) pp., 13 large folded engraved maps and plans. faint dampstain at foot of the leaves in volume 2, decreasing towards end. Clean, printed on good paper.

(København), Bianco Lunos, 1863 4to. I de originale sorte blanke omslag. Hvid paper påklistret nederste venstre højrte af foromslag. Stempel på verso af foromslag, samt titel-blad samt verso af title-blad. Omslag med en del mindre rifter. Indvendig pæn. 15 pp. Den sjældne publikation indeholdende det ceremonielle program for Kong Frederik den Syvendes castrum doloris.

Berlin, Springer, 1932. 8vo. Bound in contemporary half cloth with gilt lettering, In "Zeitschrift für Physik", Band 75, 1932. Entire issue offered. Two stamps to title page, otherwise fine. Pp. 622-647. [Entire volume: VIII, 850 pp + frontiespiece]. First appearance of Fock's seminal paper in which he introduced his algebraic construction used in quantum mechanics to construct the quantum states space of a variable or unknown number of identical particles from a single particle Hilbert space, often referred to as Fock space. Technically, the Fock space is (the Hilbert space completion of) the direct sum of the symmetric or antisymmetric tensors in the tensor powers of a single-particle Hilbert space H."Between 1928 and 1934, Fok obtained important results in the quantum field theory. He completed the mathematical method of secondary quantization proposed by Paul A.M. Dirac and developed by Pascual Jordan and Eugene Wigner. It has been shown that this method does not go beyond the traditional framework of quantum mechanics (as Jordan argued) and that the two ways of description are completely equivalent. As early as 1934 Fok suggested describing a system with a variable number of particles (bosons) in the representations of the secondary quantization with the aid of a generating functional ("Fok’s functional").In his papers Fok introduced a number of new notions. such as "the Fok space" (a Hilbert space in the representation of secondary quantization). In papers written with Dirac and Boris Podolsky (1932), Dirac’s results on interaction of charged particles by the exchange of virtual photons were extended. The one-dimensional problem solved by Dirac was generalized to the realistic three-dimensional case: the multitime formalism of Dirac, Podolsky, and Fok was introduced; and quantum electrodynamics was formulated in its modern form." (DSB).

Quedlinburg und Leipzig, Ernst'schen Buchhandlung, 1862. Small 8vo. Uncut in orig. printed wrappers. A small brownspot in upper part of frontwrapper and on the first 2 leaves. VI,138 pp., 1 folded lithographed plate, textillustrations in woodcut. Fourth edition of this popular work "The fireworker. Instruction for amateurs to make fireworks" first published 1840. - Chris Philip L.100.5.

Liege, F.J. Desoer, 1760. Contemp. full calf. Richly gilt spine, raised bands. Titlelabel with gilt lettering. A paperlabel pasted on upper part of spine. Stamps on title-page. 142 pp. and 13 large folded engraved plates. Internally clean. First edition. - Poggendorff I, 872. - Goldsmiths-Kress, 9615.0-2.

London, Longman, Brown, Green, 1853. 4to. 2 cont. hcalf. Gilt backs. All edges gilt. Corners and hinge a little rubbed. 2 engraved titles (dated 1850 a. 1852). Printed titles. (8),XVI,492,VIII,573 pp. The engraved titles brownspotted. 2 engr. maps and 36 steel-engraved plates. Woodcuts in the text. First edition.

London, The Economist Office, 1879. Small folio. Bound in comtemporary half cloth. Entire volume 37, July - December, 1879, of The Economist. Minor wear to extremities and a few repairs to a few leaves, otherwise fine and clean. Pp. 761-1504. Original printing of The Economist - the most important and influential economic journal worldwide - from the year 1879. The initial planning of the Panama Canal began in 1879. The enormous endeavor of digging the Canal was reflected in The Economist: "The canal proposed by M. de Lesseps, and intended to pierce the Isthmus of Panama is in many respects a bolder enterprise even than the Suez Canal. The engineering difficulties are far greater, the climate is a much more serious obstacle to labour, and especially to that of Europeans, and, finally, the possibility of a rival plan being carried out is much greater."

Copenhagen, Königl. Maj. Priv. Buchdruckerey, (1703). Blødt samtidigt helldrbd. Uden rygtitel. Forsatse fornyede. Stempel på titelblad. 132 pp. Yderst sjælden. - Bibl. Dan. I,676.

Paris, Léon Vanier, 1891. Uncut in orig. printed wrappers. Clean and fine, near mint copy. First edition.

Paris, Guerin & Delatour, 1757. 8vo. Contemp. full calf, raised bands, gilt spine. Titlelabel with gilt lettering. Small paperlabels pasted on spine. Stamps on front free endpapers.VIII,,192 pp. and 5 folded engraved plates. A few scattered brownspots. Otherwise fine. Second edition. - Partington I, 1337.

(Kiøbenhavn, Godiche, 1767). 46,5 x 55,5 cm. Kobberstukket kort over Sjælland med stor fin rokokkokartouche. Lidt tæt beskåret, et par små revner ved venstre margin repareret. Generalkoret over Sjælland fra Pontoppidans Danske Atlas bind III.

K., 1836. Slidt samt. hldrbd. False revnede for oven. Her og der lidt brunplettet. BFN 292. Originaludgave. Sjælden.

Stockholm, A. Wiborgs Forlag, 1818. 8vo. Bound in a contemporary half calf binding with gilt spine. Gilt title label to spine. Ownership signature to front free endpaper. Insignificant water stains to top margin of the first few leaves and plate. Few scattered brownspots, otherwise internally clean. XXVIII,298,(2) pp + 1 engraved plate. First Swedish edition, published the same year as the original Danish edition, of Rask's main work 'Undersögelse om det Gamle Nordiske eller Islandske Sprogs Oprindelse'. This treatise constitutes a founding work, not only in Nordic Philology, but also in comparative linguistics altogether. For the first time, Rask emphasised the importance of examining similarities in grammatical structure as opposed to etymology in comparative linguistics. Independently of Rask, the German linguist Jacob Grimm took a similar approach in his 'Deutsche Grammatik' published in 1819. Hjelmslev I, 27.

Milano, Federico Agnelli, 1672. 8vo. Later marbled paper binding. Damp stain throughout. Engraved title + (8), 252 pp. + 7 full-page engraved plates. The scarce first Italian translation of Jacques Hautin's famous work on Purgatory.

Fiorenzia (Florence), apresso i Giunti, 1574. 4to. No wrappers. (40) pp. Title framed by a fine renaissance woodcut. Large printers woodcut device at end. 1 large woodcut initials, portrait of Cosimo in woodcut on verso of titlepage. Stamp on titlepage. Light marginal browning. First edition of a funeral sermon on Cosimo Medici (1519-1574).

Gotha, Ettinger, 1788. Contemp. hcalf. Gilt spine.Titlelabel with gilt lettering. A paperlabel pasted on upper part of spine. Stamps on title-page. Large engraved titlevignette. (16),304 pp. and 15 large folded engraved plans. Each plate with descriptive text. Clean and fine. Klaus Jordan, 2651.

London, Longman, Orme, Brown, etc., 1840. Small 8vo. Orig. full pictorial cloth. Top and Bottom of spine frayed and a little worn. IX,324 pp. + Publishers cat. and 12 fine handcoloured engraved plates, depicting 152 species. Nissen ZBI:4191. Second enlarged edition with charming and finely hand-coloured plates.

New York: The Technology Press of the Massachussetts Institute of Technology, John Wiley and Sons, Inc, 1958. 8vo. In the original green embossed full cloth with the original wrappers. Previous owner's stamp to front free end-paper. Wrappers with some wear, otherwise a very fine and clean copy. IX, (1), 131 pp. First edition, with author's signature to title page, of this seminal work within modelling of physiological systems. The book is "an examination of the role of nonlinear processes in physics, mathematics, electrical engineering, physiology and communications theory." (OOC 1004)."Wiener's seminal ideas on systems and cybernetics have shaped the entire field of systems science and have inspired it tremendous in the last 50 years. [...] Furthermore, Wiener's specific mathematical ideas for modeling nonlinear dynamic systems in a stochastic context, presented in his seminal monograph [the present], have provided great impetus to our collective efforts for modeling physiological systems." (Marmarelis, Nonlinear dynamic modeling of physiological systems. P. 142).See Origins of Cyberspace 1004.