A Monograph of the British Desmidiaceae. 5 Bände. - Rare Book Insider
book (2)

West, W(illiam) und G(eorge) S(tephen) West.

A Monograph of the British Desmidiaceae. 5 Bände.

London Ray Society -23: 1904
  • $1,052
(22,5 x 14,5 cm). XXXVI, 224, 12 S./ IX, 206, 27 S./ XV, 274, 4 S./ XIV, 194, 4 S./ XXI, 300 (2) 6 S. Mit 167 teils farbig lithographierten Tafeln, jeweils mit 1 Seite Tafelerklärungen. Moderne Leinwandbände mit Kopfgoldschnitt. Erste Ausgabe. - William West (1848-1914) "became lecturer of botany at Bradford Technical College. In 1897, he was elected to the Fellow of the Linnean Society, and played an active role for the British Association. His studies did become more specialised, focusing on freshwater algae with his son George. Over the next two years, the two Wests became experts, and eventually published the 'Monograph of the British Desmidiaceae'. Nearing the end of West's working life, he began studying ecology of cryptograms" (Plantspedia). - Titel mit handschriftlichem Besitzvermerk. Tafeln teils leicht gelockert und Vorsätze mit kleinen Klebeflecken, sonst gut erhalten. - Stafleu-Cowan 17238
More from Antiquariat Gerhard Gruber
book (2)
book (2)

Beiträge zur Theorie der Affinität und Valenz.

Werner, Alfred. (20,5 x 13 cm). (2) 41 S. Mit 18 Abbildungen. Broschur mit altem Material. (Sonderdruck aus: Vierteljahrschrift der Züricher naturf. Ges.). Erste Ausgabe seiner bahnbrechenden und sehr seltenen Habilitationsschrift. - "Werner spent the next two years working on his Habilitationsschrift, 'Beiträge zur Theorie der Affinität und Valenz,' in which he chose to attack the supreme patriarch of structural organic chemistry, August Kekulé. In this work Werner attempted to replace Kekulé's concept of rigidly directed valences with his own more flexible approach, in which he viewed affinity as a variously divisible, attractive force emanating from the center of an atom and acting equally in all directions. By the use of this new concept and without assuming directed valences, Werner was able to derive the accepted van't Hoff configurational formulas. Although this important paper contains the seeds that later flowered in the primary valence (Hauptvalenz) and secondary valence (Nebenvalenz) of the coordination theory, it deals exclusively with organic compounds. Unfortunately, it was published in a rather obscure journal of limited circulation, where it elicited little notice until brought to the attention of the scientific world in 1904 by a discussion of its concept in Werner's first textbook" (DSB). - Werner (1866-1919), Professor für Chemie in Zürich, begründet mit seinen Arbeiten über die Bindung der Atome in Molekülen die Stereochemie der anorganischen Verbindungen und erhält 1913 dafür den Nobelpreis für Chemie. - Titel gebräunt und gestempelt, sonst gut erhalten. - DSB 14, 264; Kauffman A7
  • $928