i893. SOME NEW BOOKS. 305 



and Botany of the region immediately to the south of Bonn. It is 

 written in popular style by Mr. Stiirtz, the well-known dealer in 

 geological specimens at Bonn, and is accompanied by a frontispiece 

 giving a general view of the Siebengebirge. There are also lists of 

 maps and works of reference. 



A Classed and Annotated Bibliography of the Paleozoic Crustacea, 1698- 

 1892, to which is added a Catalogue of North American Species. By Anthony 

 W. Vogdes. Occasional Papers IV., California Academy of Science. 8vo. 

 Pp. 416. San Francisco: June, 1893. Price 10s. 



This valuable book, as its title indicates, is divided into parts. The 

 bibliography (part 1) occupies 252 pages, and is followed by a cata- 

 logue of Trilobites (part 2), arranged firstly under the families, and 

 secondly in alphabetical order of genera. The third part (pp. 361-414) 

 treats of the non-trilobitic genera and species, which follow precisely 

 the same convenient anangement as do the Trilobites. The volume 

 appears to be compiled in the author's usual careful manner. 



The Clarendon Press announces the issue of part i. of Mr. B. D. 

 Jackson's " Index Kewensis," a monumental index to the names (with 

 authorities) of all known flowering plants, with an indication of their 

 geographical distribution. The part comprises 728 pp., 4to, and is 

 issued to subscribers at two guineas net. Sir Joseph Hooker, who 

 has supervised the work, thus explains its origin : — " Shortly before 

 his death, Mr. Darwin informed me of his intention to devote a con- 

 siderable sum in aid or furtherance of some work of utility to 

 biological science; and to provide for its completion, should this not 

 be accomplished during his lifetime. He further informed me that 

 the difficulties he had experienced in accurately designating the many 

 plants which he had studied, and ascertaining their native countries, 

 had suggested to him the compilation of an Index to the Names and 

 Authorities of ajl known Flowering Plants and their Countries, as a 

 work of supreme importance to Students of Systematic and Geo- 

 graphical Botany, and to Horticulturists, and as a fitting object of 

 the fufilment of his intentions. I have only to add that, at his 

 request, I undertook to direct and supervise such a work ; and that 

 it is being carried out at the Herbarium of the Royal Gardens, 

 Kew, with the aid of the staff of that establishment." 



The third part of the new edition of the Molluscan portion of " Dr. 

 H. G. Bronn's Klassen und Ordnungen des Thier-Reichs " is just 

 out, and permits one to judge of its merits. So far the work is in 

 every way a worthy successor to the previous edition, and the fact 

 that it is being brought out under the able editorship of Dr. Simroth, 

 of Leipsic, is a guarantee that this standard of excellence will be 

 maintained to the end. 



The first two lieferungen, issued last year, were devoted to an 

 historical summary ; the new part, which ranks as lief. 3 to 6, contains 

 a general bibliography and the beginning of the Aplacophoni, with the 

 first four plates. 



By some curious oversight, while many of the minor papers on 



x 



