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Halle, Anton und Gelbcke, 1830. 2 contemp. hcalf. Gilt spines. Slightly rubbed. In: "Neues Jahrbuch er Chemie und Physik. Herausgegeben von W. Schweigger-Seidel", Bd. II und III. XVI,496 pp. a. 5 folded engr.plates. + XVIII,502 pp. a. 5 folded engr. plates. Ohm's paper: pp. 385-435 (Bd. II) + pp. 32-59 (Bd. III). First appearance of this importent paper in which Ohm for the first time shows that unipolarity is a kind of polarization which he calls "Gegenspannung"

Paris, A la Libraire Grec-Latine-Allemande, 1816. 8vo. 2 contemp. hcalf. Gilt spines. Gilt lettering. Light wear along edges. 86),439,(1);(4),381,(1) pp., 1 folded engraved plate (a triangulation from Pic de Teneriffe). Scattered brownspots. This is the 2 first volumes of the 8vo-edition of the Voyage, comprising the historical relation. There should be 19 plates and an Atlas. Only 1 plate is present and the atlas is missing. - BMC (NH) II,890. - Brunet III,373.

Paris, henri Plon et J. Dumaine, 1858-63. 8vo. Bound in 13 contemp. hcalf, richly gilt spines. One volume lacks a bit of leather on spine. Slightly rubbed. With the bookplate of the Danish king Frederik VII in gilt on all covers. Some scattered brownspots.

Halle, Niemeyer, 1913-16. Two 8vo volumes, both in orig. wrappers. 1st part, being offprint: in the orig. brownish wrappers. A bit of wear to upper capital and a bit of occasional brownspotting. Corners a bit bumped. Uncut. (4), 161 pp. 2nd part, being the entire issue of Jahrbuch für Philosophie ... from 1916: Orig. greyish wrappers, sunned spine. Nice and clean. Uncut. Pp. 21-478. Entire volume: VIII, 478, (2), (8, -contents list for volume 1, part 1). The first printing, first part in offprint, of Max Scheler's great phenomenological work "Formalism in Ethics and Non-Formal Ethics of Values".Max Scheler (1874-1928), an important contemporary of Husserl, was a German phenomenological philosopher mostly known for his theories of value and philosophical anthropology. He was very inspired by Husserl and further developed his philosophical method. He was greatly admired in his time and made important contributions to his fields of philosophy. When José Ortega y Gasset called Scheler "the first man of the philosophical paradise", this expresses a notion felt my many of the important philosophers of his time. Though he did not always see eye to eye with Husserl and Heidegger, they admired him a great deal, and had it not been because of his early and sudden death, he might well have survived as one of the most important philosophers of the 20th century. Heidegger actually referred to him as "the strongest philosophical power in contemporary Germany, no in contemporary Europe and even in contemporary philosophy in general" ("die stärkste philosophische Kraft im heutigen Deutschland, nein, im heutigen Europa und sogar in der gegenwärtigen Philosophie überhaupt"), and in his thoughts are represented the epitome of philosophical and cultural efforts articulated in the transition to the 20th century.In this work, which is one of his main, we are presented with the essence of Scheler's theory of value. He wishes to found an ethic in form of a theory of value, and he focuses on the feeling human nature and the individual, who feels and loves. He puts the value of the person in front of knowledge and perception and presupposes the sphere of the individual human being, denying the possibility of pure ego, pure reason or pure consciousness, thus criticizing both Husserl, Kant and German idealism. The essence of human existence cannot be accounted for by a transcendental ego, reason, will or the like, but by the human feelings with love as the centre. Scheler links human feelings to experiences of value and divides these into five ranks that can be felt by all human beings. These values are independent of the things they are felt with, though there is always a certain order, and this order is thoroughly investigated.

Amsterdam, Henry Desbordes, 1690. 12mo. In contemporary full calf with four raised bands and richly gilt spine. Small paper label pasted on to top of spine. Leather on spine slightly cracked and boards with a few scratches. Crowned ex-libris pasted on to pasted down front end-paper. First leaves with dampstain and slightly brownspotted throughout. (4), 138, (10), 395 pp. Uncommon first edition of Rosemond’s work on the tumultuous period in English history, centered on the reign of King Edward II (1307–1327). Edward II faced numerous challenges, including his reliance on unpopular persons like Piers Gaveston and Hugh Despenser which led to dissatisfaction among the English nobility.

London, Seeley and Burnside, 1835. 2 orig. full cloth, gilt lettering on backs. Uncut. Tears in hinges, backstrip loosening. But block tight. XI,321;VIII,336 pp. Some browning mainly to first and last leaves in both volumes. First edition. "The Author accompanied Washington Irving in his tour on the prairies, and a large part of the work is occupied with observations of Indian Life. It contains many satirical yet good-humored pictures of public life and social usages." (Sabin No 39222).

Altona, Johann Friedrich Bähr, 1722. 4to. Contemp. full vellum. Last inner hinge loose. The portrait lacks. Engraved emblematic frontispiece. (12),64,1121,(22) pp. A few scattered brownspots. Occassionally light browning to leaves. A few corners with tiny wormtract. "Die Erste Liebe" is Arnold first major work. "An almost revolutionar book of the new trend that established his fame and brought him an appointment as professor at the University of Giessen in 1697, which he resigned a year later. This book gives a new picture of the primitive church as the ideal brotherhood to be emulated. Its appeal was tremendous throughout the 18th century (six editions appeared up to 1780, latest European edition 1845) and continued also its value as a favorite devotional reader among the Pennsylvania Germans (numerous editions in America). (Robert Friedmann in "Mennonite Piety Through the Centuries").

(Paris, Jean Boudot, 1702 a. 1703). 4to. Without wrappers. Extracted from "Mémoires de l'Academie des Sciences". Année 1699 a. Année 1700. Pp. 44-51 and 1 textillustration. (depicting his + pp. 64-71. First appearance of the 2 papers which represents Homberg's main works. In these papers he shows for the first time how to determine equal weights of substances, that all acids differ only in water content, and that dry acids combines in equal proportions with alkali. In the first paper he also gives the Pygnometer Bottle its modern form."Probably his most importent work was on the strenght of acids and the quantity required to neutralize a given quantity of alkali (two papers published in 1699 and 1700) - the papers offered - Homberg recognized that different alkalis neutralized the same acid in different proportion but believed that the relative strenghts of two acids could be determined by using the same alkali in each case. he treated the the question of neutralization (or dissolvability, as he called it) in quite quantitative fashion, showing that if an alkaline salt were treated with an acid, the gain of weight ofthe salt wasan indication of the amount of acid absorbed....Homberg nevertheless understood the fundamentals of the process and thereby laid the foundation for an understanding the nature of salts."(DSB VI, p. 478).Parkinson "Breakthroughs" 1700 C.

(Paris, Bachelier), 1845. 4to. No wrappers. In: "Comptes rendus hebdomadaires des séances de l’Académie des sciences", Vol. 21, No 19. Pp. (1009-) 1082 (entire issue offered). With titlepage to vol. 21. Le Verrier's paper: pp. 1050-1055. Stamp to top of titlepage. First appearance of Le Verrier's first paper on the anomalities in the orbit of Uranus, the calculations on which eventually leading to his prediction and discovery of a new planet, Neptune the following year, 1846.

København, 1839-42. Samtidigt halvlæderbind med forgyldt titel på ryg. Første blade en smule brunplettede, ellers pænt eksemplar. 35,62,89,78,36 pp. Originaludgaverne. Allerede det første nummer vakte røre, han blev straks sat under tiltale og idømtes censur og bøder - yderst sjælden.

Gotha, Carl Wilhelm Ettinger, 1777. Uncut in orig. blue boards. handwritten titlelabel on spine. (8),350,(2);VIII,224 pp. Clean and fine. First edition of perhaps Lossius' main work. In the work he tries to found logic and deductive reasoning on neurophysiological principles. He was professor of philosophy at Erfurt from 1770.

Bruxelles, A. Lesigne, 1894. Folio. Contemp. hcloth. Orig. printed frontwrapper pasted on upper board. Stamp on title-page. 120 pp. and 176 plates, many folding. Internally clean and fine.

London, Henry Colburn, 1819. 8vo. Uncut in 2 orig. boards, orig. printed titlelabels on backs. Some tears to the rather fragile backs. XVI,375;(4),396 pp., 1 folded engraved map and 7 hand coloured aquatint-plates. Offsetting from a few plates, otherwise clean. Abbey No 301. Lowndes p. 2718 as well as Tooley (No 493) attributes the work to Richard Tully. The first edition issued in 4to in 1816 in 1 volume having only 5 plates. 2 more plates were done for the second edition in 8vo from 1817. The third edition comprising these additional plates.

Amsterdam, henric Westenius, 1676. 12mo. Later modest hcloth. Engraved titlevignette. (16),148,(2),18,(8) pp. 7 textengravings (of which 4 are full-page), several woodcut illustrations. A small piece of corners gone on titlepage, no loss of text. Light browning to the fist leaves, a marginal dampstain to the last 12 leaves. Second edition of caspar Bartholin's historical account of the jewellery of the Ancients together with his father's dissertation on nose-rings.Bibl. Danica II:446. - Wellcome II, 108.

London, John Weale, 1839. Royal8vo. 2 Contemp. modest hcalf. With the orig. printed frontwrappers pasted on frontboards. Stamp on title-pages. 2 engraved title-pages. VIII,80,88,72;140 pp., 1 engraved plate. Platevolume with 59 engraved plates as belonging to vol. I (numbered between 1-103), mostly large and multiple-folded. Plates with scattered brownspots.

(London, W. Bulmer and Co., 1805). 4to. No wrappers as extracted from "Philosophical Transactions" 1805 - Part I. Pp. 31-64 and 1 engraved plate. Clean and fine. First appearance of an importent paper, founding the metric of interstellar space.It was the contemporous discoveries of the first minor planets, ceres in 1801, Pallas in 1802 and Juno in 1803, that prompted Herschel to investigate the origin of the spurious diameters of stars. "Were their apparent diameters as real as those of planets or spurious as for stars? To address this question Herschel conducted an extensive series of experiments in his garden in Slough, examining through his telescope small globules of differing sizes and materials placed in a tree some 800 ft (ca. 244 m) away (Herschel 1805). His observations showed that for the smallest globules the diameters were all spurious and all of the same size. Furthermore, he found that, if just the inner part of the aperture of the telescope were used, the spurious diameters, whether of globules or of stars, were larger. If the whole aperture was employed, the diameters were smaller, and if only an outer annular aperture was used the diameters were smaller still. This experimental discovery that unfilled apertures can be used to obtain high angular resolution remains today the essential basis for interferometric imaging in astronomy (in particular Aperture Masking Interferometry). The theoretical justifi­cation of this result came with Airy's analysis of the diffraction pattern of a circular aperture 30 years later (Airy 1835), and it took a further 30 years before the idea of using multiple apertures was developed. In an early study the Reverend W. R. Dawes noted that he had `frequently found great advantage from the use of a perforated whole aperture' and that when observing Venus this produced `a central image of the planet perfectly colourless, and very sharply de­ned' (Dawes 1866). But it was left to Fizeau, in his submission to the Commission for the Prix Bordin the following year, to remark on `une relation remarquable et n´ecessaire entre la dimension des franges et celle de la source lumineuse' and suggest that by using an interferometric combination of light from two separated slits `il deviendra possible d'obtenir quelques donn´ees nouvelles sur les diametres angulaires de ces astres' (Fizeau 1868)."

Dresden, Arnoldischen Buchhandlung, 1816-19. 8vo. and small folio-oblong (23,5 x 32 cm.). Textvols: 2 contemp. hcalf. Gilt spines. Titlelabels with gilt lettering. Spine a little rubbed. Stamp on title-pages. XII,498;(6),XIV,722,(2) pp., 6 folded tables. + Atlases: 2 contemp. hcalf. handwritten title on upper boards. With 15 engraved plates (7 + 8). Scattred brownspots. Klaus Jordan,112.

(Paris, Gauthier-Villars), 1869. 4to. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 68, No 7. Pp. (349-) 408. (Entire issue offered). Janssen's paper pp. 367-376. First printing of the paper in which Janssen announced the discovery of a new element. On August 18, 1868, Janssen managed to do just that. He became the first person to observe helium, an element never before seen on Earth, in the solar spectrum. At the time, though, Janssen didn’t know what he’d seen"just that it was something new""Helium, the second most abundant element in the universe, was discovered on the sun before it was found on the earth. Pierre-Jules-César Janssen, a French astronomer, noticed a yellow line in the sun's spectrum while studying a total solar eclipse in 1868. Sir Norman Lockyer, an English astronomer, realized that this line, with a wavelength of 587.49 nanometers, could not be produced by any element known at the time. It was hypothesized that a new element on the sun was responsible for this mysterious yellow emission. This unknown element was named helium by Lockyer."

Paris, L'Imprimerie Royale, 1761. 4to. Fine contemp. full calf. Raised bands. Richly gilt spine. Tome- and titlelabels with gilt lettering. Gilt borders on covers. Light wear to foot of spine. (10),175,602 pp., 20 partly folded engraved plates. Clean and fine. With original papers by: de Mairan, Buache, Pingré, Maquer, le Gentil, l'Abbé de la Caille, Le Roy, Bouguer, Maraldi, Cassini, de Thury, de la Sône, le Duc de Chaulnes, de l'Isle, Guettard, de Lalande, Pingré, Marquis de Courtivron, l'Abbé Nollet, Bourdelin, le Gentil, Marquis de Montalembert, de Fouchy, le Monnier, du Hamel.

Leipzig, Johann Ambrosius Barth, 1888. Without wrappers as issued in "Annalen der Physik und Chemie. Hrsg. von G. Wiedemann.", Neue Folge Bd. 33, 2. Heft (= No 2). Titlepage to vol. 33. Smal stamps to verso of title and titlepage. Pp. 241-416 a. 1 plate (entire issue offered "Heft" 2). Hallwach's paper: pp. 301-312. Clean and fine. First appearance of this pioneer paper in the history of the PHOTOELECTRIC EFFECT, as Hallwachs here for the first time showed that metals lose their negative charges under the action of ultraviolet radiation and becomes positive charged. The earliest speculations of the nature of the effect predates the discovery of the electron in 1897 by J.J. Thomson."This process, which is called the photoelectric effect or Hallwachs effect, forms the basis for the physics of the photoelectric cell and was theoretically interpreted by Einstein in 1905 in Einstein's work on light quanta."(DSB VI, p.74)."On the basis of his heuristic principle, Einstein proposed the following 'simplest picture' for the photoeffect. A light-quantum gives all its energy to a single electron, and the energy transfer by one light-quantum is independent of the presence of other light-quanta....and he gave several other applications of his heuristic principle..."(Pais in "Subtle is the Lord" pp. 380-81).Magie "A Source Book in Physics", pp. 578 ff.

London, T. Sowle, 1738. Large8vo. In contemporary full calf with five raised bands and gilt lettering to spine. Mirrordecorations to boards. With a few repairs to hindges and spine. With new title-label to spine. Annotated titlepage. Enclosed handwitten note concerning the book by the Danish historian Bjørn Kornerup. Internally with light occassional dampstaining. XVIII, 556, (5). The rare first Danish of Barclay's classic work of Quaker theology. It was first published in Amsterdam in 1676 as "Theologiae verae Christianae apologia" and in 1678 translated and published as "An Apology for the true Christian Divinity".

(Amsterdam, 1645 or later). 39,2x50 cm. Fine engraved map over Huntingdon, broad margins, fine orig. handcolouring. Clean. Large cartouche with dogs and huntingscenes. Map decorated with many large coats of arms. Latin text on verso (pp. 271-72).

Washington, Alexander, 1850. 4to. Original clothbacked blue boards. Handwritten title on upper board. Stamp on title-page. 51 pp. Scarce second edition (the expanded second edition published the same year as the first) of one of Maury's sailing directions, based on his theories of oceanic currents, and published before his famous work "The Physical Geography of the Sea". In the offered work he gives instructions for sailors from N.Y. to Europe and Rio.Not in Sabin.

Kiøbenhavn, Seidelin, 1826. Indbundet ubeskåret med de originale blå blanke omslag medindbundet i 3 smukke hldrbd. i oaseged med rygforgyldning, titeletiketter i skind forgyldte på rygge. Guldsnit foroven. De originale bogtrykte rygtitler bevaret på indersiden af de sidste friblade. (Jul. Lassen). Fra Troensegaards bogsamling med hans exlibris. Originaludgaven i usædvanlig velbevaret stand.

(København, Høpffner), Trykt på Forleggerens egen Bekostning, (1742). Indbundet i et senere hldrbd. med rygforgyldning (ca 1840). Sidste 10 blade i 5. tome med en svag skjold, ellers velbevaret. Det yderst sjældne 1. optryk af "Skuepladsen", her alene bind 4 og 5. Dette optryk var bestemt til at indbindes i 2 bind, indeholdende henholdsvis 1-3. og 4-5. tome. heri således 1. optryk af 10 komedier, bl. a. Erasmus Montanus.Ehr.-M. XI, 194 ff.