15 OCTOBER 1864, Page 21

French naturalist has here recorded in a simple and popular

form the result of his inquiries into the obscure subject of generation. The main result at which ho arrives is that the process of gemination by which some individuals reproduce themselves, as, for instance, those worms of which when divided tho parts become perfect worms, is ex- haustive and cannot be carried on indefinitely ; if the species is to bo perpetuated the sexes must be developed. Tho talent of M. Quatre- fages for popular exposition is notorious among students of science, and Dr. Lawson's translation is worthy of the original.