258 Miscellaneous Intelligence. 



an introduction by William H. Rhawk, Chairman, 319 pp. 

 Philadelphia, 1891. — The subject treated of in this volume, as is 

 shown in the above title given in full, is eminently practical and one 

 demanding more attention than it has yet received in this country. 



5. Die Cordillere von M'erida neost Bemerkungen uber das 

 Karibische Gebirge. — Ergebnisse einer mit Unterstiitzung der 

 Geographischen Gesellschaft zu Hamburg 1884-85, ausgefuhrten 

 Reise von Dr. W. Sieyees, 238 pp. Vienna and Olmtitz (E. 

 Holzel) — Geographische Abhandlungen herausgegeben von Prof. 

 Dr. A. Penck, Band III, Heft. 1. An extended notice was given 

 in the February number (pp. 141-151) of another of the geo- 

 graphical memoirs published under the auspices of Dr. Penck. 

 The present volume gives the geographical and geological results 

 of a year's journey in the Cordilleras of Venzuela; a large 

 geological chart accompanies the text. 



6. Krystallographisch-Chemische Tabellen von Dr. A. Fock. 

 94 pp. Leipzig, 1890 (Wm. Engelmann). — This is a convenient 

 series of tables giving for the successive groups of chemical com- 

 pounds, both natural and artificial, the chemical formula, crystal- 

 line system, and axial ratio with the authority. It includes both 

 inorganic and organic compounds. 



7. Copley Medal. — The Copley medal of the Royal Society 

 has been given this year to Professor Simon Newcomb for his 

 researches in gravitational astronomy. 



8. OsticaUVs Klassiker der Exakten Wissenchaften. — Leipzig, 

 1890 (Wm. Engelmann). The recent numbers of this valuable 

 series include the following : 



Xo. IT. Abhandlungen uber symmetrisehe Polyeder von A. Bravais (1849). 



Xo. 18. Abhandlungen uber den Speichel von C. Ludvrig. E. Becher und 

 Conrad Rahn (1851). 



Xo. 19. Ueber die Anziehung horoogener Ellipsoide: Abhandlungen von 

 Laplace (1782). Ivory (1809). Gauss (1813), Chasles (1838), Dirichlet (1839). 



Xo. 20. Abhandlung uber das Licht, worin die Ursachen der Yorgange bei 

 seiner Zuruckwerfung und Brechung und besonders bei der eigenthumlichen 

 Brechung des islandischen S]3athes dargelegt sind, von Ch. Huyghens (1678). 



OBITUAEY. 



James Ceoll, the eminent writer on geological physics, died 

 in England, December 15th, 1890. The periods of his life and 

 mental progress are well shown in the chronological sequence of 

 his principal and best known works. With at first, a strong 

 speculative tendency as shown in the " Philosophy of Theism," 

 he soon engaged in more exact scientific investigations, and in 

 1864 appeared his essay, "On the Physical Course of the Change 

 of Climate during the Glacial Epoch." This was followed by 

 numerous papers, which in 1875 were incorporated in his well 

 known work on " Climate and Time in their Geological Rela- 

 tions." An expansion of these ideas resulted in the publication of 

 " Discussions in Climate and Cosmology," followed by " Stellar 

 Evolution and its Relation to Geological Time." His last labors 

 mark a return to the field of pure philosophy, and his final work 

 on the "Philosophical Basis of Evolution" presents his most 

 matured ideas in speculative inquiry. 



