27 MARCH 1915, Page 25

The importance of the influence of insects upon the conditions

of human life is beginning to be generally understood. Mr. O. A. Ealand in Insects and Han (Grant Richards, 12s. net) discusses the habits of those among the insects which come into closest contact with mankind, owing to their effects either indirectly upon his food supply or more directly upon his person. The volume, with its full bibliography, should be of interest to students of economic entomology.