416 
POPULAR SCIENCE EEYIEW. 
Bible- Animals. By the Bev. J. G. Wood. Longmans. The several 
numbers of this work have been received. The book shall be reviewed 
when completed. 
The Drift-beds of Llandrillo Bay. By Miss Eyton. This reprint from the 
Geological Magazine ” contains an instructive account of the Post Pliocene, 
and recent drifts of Denbighshire by Miss Eyton. Miss Eyton is a work- 
ing geologist,” and not a mere ^Gady-writer,” and the opinions she ex- 
presses are founded on careful scientific research. 
Geological Time. By James Croll. A reprint from the Philosophical 
Magazine ” for August. The author, whose philosophical speculations are 
now looked on with the highest interest, tries to fix the probable date of the 
Glacial and Upper Miocene Period. His enquiries are to be continued, and 
probably in our next number we shall deal with them more fully. 
