THOUGH embodying no original research, this book is a useful and pleasantly written compilation of the results achieved by economic entomologists (including medical investigators), and of the tasks that arve yet to be undertaken in Man's battle with his most formidable rivals on earth. The majority of the statistics and facts narrated are from the United States; but this circumstance in no way impairs their value to the British reader, whether doctor, farmer, or forester.
Insects and Human Welfare.
By Prof. C. T. Brues. Pp. xii+104. (Cambridge, Mass.: Harvard University Press; London: Oxford University Press, 1920.) 10s. 6d. net.