A useful handbook on punctuation, capitalization, spelling, abbreviations, numerals, etc., and with an appendix on weights and measures. WOOLLEY, E. C. 1907. Handbook of Composition. A Compendium of Rules Regarding Good English, Grammar, Sentence Structure, Paragraphing, Manuscript Arrangement, Punctuation, Spelling, Essay Writing and Letter Writing. pp. 239. Boston. VI. IMPORTANT SOURCES OF INFORMATION ON THE LIFE HISTORIES OF INSECTS AND ALLIED INVERTEBRATES Insects are to-day one of the dominant forms of life and are present in almost every large animal association or habitat. They therefore form an important element in a large number of ecological studies. And although facts of ecological significance have been accumulating for many years they are so widely scattered that to find them when needed is quite a serious problem. To aid in such a search the following references are given. It should be remembered that spiders, mites, and myriapods are commonly included in entomological literature and are therefore included in this list. The list is not intended as a substitute for the more elaborate sources such as the Zoölogical Record and similar standard works to be found in large libraries, but it includes publications that are more likely to be within the grasp of teachers and students not located at library centers. Many of these are public documents, and even if out of print, can easily be secured from second-hand dealers. A student who has access to large libraries will find the following paper very valuable in suggestions as to the methods of finding the literature on many general zoölogical subjects. MINOT, C. S. 1896. Bibliography. A Study of Resources, pp. 149-168. Biol. Lectures, Wood’s Holl, 1895. Boston. (Alphabetically arranged.) ALDRICH, J. M. 1905. A Catalogue of North American Diptera. Smithsonian Misc. Coll., Vol. XLVI, No. 1444. pp. 680. Contains an extensive bibliography on flies. ANONYMOUS. 1906. Catalogue of Publications Relating to Entomology in the Library of the U. S. Department of Agriculture. Library Bulletin 55. pp. 562. Washington. BANKS, N. 1892. A Synopsis, Catalogue, and Bibliography of the Neuropteroid Insects of Temperate North America. Trans. Amer. Ent. Soc., Vol. XIX, pp. 327-373. 1898-1905. Bibliography of the More Important Contributions to American Economic Entomology, Parts VI, VII, and VIII. U. S. Department of Agriculture, Bureau of Entomology. A continuation of the work begun by Henshaw (1889-1896). 1900. A List of Works on North American Entomology. U. S. Dept. Agr., Div. Ent., Bull. No. 24 (N. S.). pp. 95. 1902. An Index to Bulletins Nos. I-30 (N. S.), (1896-1901), of the Division of Ent. U. S. Dept. Agr., Div. Ent., Bull. No. 36 (N.S.). pp. 64. 1910. A List of Works on North American Entomology. U. S. Dept. Agr., Div. Ent., Bull. 81. pp. 120.