22 APRIL 1905, Page 23

The Camera in the Fields. By F. C. Snell. (T.

Fisher 17nwin. 58.)—The first part of Mr. Snell's manual is entitled "The Camera and the Dark Room";. in this the processes aro explained. The beginner, and possibly the experienced practitioner, will find in it valuable hints. Mr. Snell, for instance, recommends the use of an "exposure meter,"—it is an irritating experience to find, on getting back after a journey, that the plates have been exposed for too long or too short a time. Parts IL-V. are devoted to the several subjects of Ornithology, Zoology, Entomology, and Botany; in each the special subject—how bird, beast, insect, or plant is to be best "taken off" by the camera—is dealt with. The volume is amply illustrated.