19 APRIL 1890, Page 43

A Manua/ of Paleontology. By Professor H. A. Nicholson and

R. Lydekker. (Blackwood and Sons.)—This is a third edition of what

must now be a standard work on paheontology. The two large octavo volumes number some 1,600 pages, so that they have been

considerably "enlarged and rewritten," as we are informed on the title-page. The illustrations, some hundreds in number, are good and serviceable-looking. It is a pleasure to see an important work of this kind kept up to date. The student infinitely prefers an old favourite, such as this is, when it is carefully and conscientiously edited, to a new work.