88 Proceedings of the Royal Physical Society. 
VII. Economic—Work of a General Nature. 
Most of the general works (Annual Reports, etc.) on Injurious Insects 
contain important notes and observations on Diptera. A detailed bibliography 
under this heading is beyond the scope and purpose of the present paper. 
The student specially interested in Injurious Diptera will find it necessary 
to index for himself most of these works. A selection of the more important 
is given below :— 
72. Curtis, J.: Farm Insects. Edinburgh, 1860. 
78. OrmeErop, E. A.: Manual of Injurious Insects, with Methods of Pre- 
vention and Remedy. London, 1881. This useful work has gone 
through several editions. | 
74. Ormerop, E. A.: Textbook of Agricultural Entomology. London, 
2nd Edition, 1892. 
75. ORMEROD, E. A.: Reports of Injurious Insects and Common Farm Pests. 
London, 1878, and succeeding years. 
76. THEoBALD, F. V.: Reports on Economic Zoology. London, British 
Museum, 1903, et seqq. 
77@. THEOBALD, F. V.: Reports on Economic Zoology. Journ. S. Eastern 
Agric. Coll., 1900, et seqq. 
78. CARPENTER, G. H.: Injurious Insects and other Animals observed in 
Ireland. con. Proc. Roy. Dublin Soc., 1902, et seqq. 
79. CoLLINGE, W. E.: Reports on the Injurious Insects and other Animals 
observed in the Midland Counties. Birmingham, 1904, et seqq. 
80. CoLtincr, W. E.: Annual Reports of the Honorary Consulting Zoologist. 
Journ. Land Agents Soc., 1907, et seqq. 
81. Warburton, C.: Reports of the Zoologist of the Royal Agricultural 
Society of England, 1898, et seqq. 
82. MacDouGat.., R. STEWART: Reports on Injurious Insects. Trans. High. 
and Agric. Soc. Scotland. 
83. Journal of the Board of Agriculture, vols. i. to xxii. (1894-1916). 
84, Review of Applied Entomology—Series A, Agricultural, and Series B, 
Medical and Veterinary. Vols. i. to iv. (1913 to 1916). 
85. Bulletin of Tropical Diseases. Vol. vili. now in course of publication. 
London, Tropical Diseases Bureau. 
85a. EALAND, C. A.: Insects and Man. London, 8vo, 1915. 
85b. EALAND, C. A.: Insect Enemies. London, 8vo, 1916. 
85c. Mrati, L. C.: Injurious and Useful Insects, an Introduction to the 
Study of Economic Entomology. London, 1902, vili+256 pp., 
103 cuts. | 
