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NOTICES OF RECENT BOOKS. 



The Cambridge Natural History. Vol. v. Peripatds, by 



Adam Sedgwick, M.A. Myriapoda, by F. G. Sinclair. 



M.A. Insects, part 1, by David Sharp, M.A., M.B. 



London: Macmillan. 17s.net. 



This volume, the second of the series already published, is 



one the value of which, as a text-book and work of reference 



for students, and also for more advanced naturalists, can hardly 



be overstated. 



To the microscopist the first section, comprising 26 pages, is 

 likely to be of special interest from the excellence of the 

 descriptions and of the illustrations of the minute structure and 

 anatomy, as well as w r hat is known of the life history of that 

 most remarkable of creatures, Peripatus, so different in its 

 characters from the Anthropods on the one side and the 

 Annelids on the other, that a separate class had to be created 

 for the sole occupancy of its single genus. 



The species most particularly described is P. Capensis, with 

 which the author is from personal examination thoroughly 

 acquainted, but a list of the other recorded species is given, 

 together with a map showing their geographical distribution. 



The 50 pages devoted to the Myriapods are, perhaps, some- 

 what less satisfactory, the first 20 pages on classification being 

 mainly derived from Koch, the 11 illustrations being copied 

 from his figures in "Die Myriapoden" some of which — notably 

 that of Polyxemis Lagurus — are sadly deficient in detail, and 

 neither in these nor in the subsequent illustrations of the 

 internal structure and embryology is any indication given of 

 the scale to which they are drawn. 



The third section of the volume — Insects, part 1 — consisting 

 of nearly 500 pages, illustrated by more than 300 figures, is in 

 every way worthy of the reputation of its author, and is, 

 indeed, a work which no true entomologist can afford to be 

 without. Its value will, perhaps, not be very great to the mere 



