BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
79 
670. Forbes, S. A. On the food of young fishes. <Bull. No. 3, Ill. 
State Lab. Nat. Hist., November, 1S80, v. 1, pp. 66-79. <Proc. 
Cent. Fishcultural Soc., v. 2, p. 10. 
Facts relating to tlie food of the fresh-water fishes of Illinois during the first 
period of life. 
671. Forbes, S. A. The food of birds. <Bull. No. 3, Ill. State Lab. 
Nat. Hist., November, 1880, v. 1, pp. 80-148. 
Result of an investigation undertaken to determine the exact relation of 
various species of birds, and of the class in general, to agriculture and 
horticulture. 
672. Forbes, S. A. Notes on insectivorous Coleoptera. <Bull. No. 3, 
Ill. State Lab. Nat. Hist., November, 1880, v. 1, pp. 153-160. 
Deals with the mouth structures of the Carabidse; their food ; the food of 
Podabrus and of several Coccinellidte. 
673. Forbes, S. A. Supplementary report on the food of the thrush 
family. <Trans. Ill. Hortic. Soc., 1880, n. s., v. 14, pp. 106-126. 
Detailed report on the food of the Saxicolid®. 
674. Forbes, S. A. A few notes on the food of the meadow lark. 
<Trans. Ill. Hortic. Soc., 1880, n. s., v. 14, pp. 234-237. 
Food habits indicate the usefulness of the meadow lark. 
675. Forbes, S. A. Supplementary note on the food of the blue-bird. 
<Amer. Nat., January, 1881, v. 15, pp. 66-67. 
Food habits of Sialia sialis in August and September. 
676. Forbes, S. A. The English sparrow in Illinois. <Amer. Nat., 
May, 1881, v. 15, pp. 392-393. 
Relative amount of insect and of other food found in the stomach of Passer 
domesticus. 
677. Forbes, S. A. The army worm. <Bloomington Pantagraph, 28 
July, 1881. 
Ravages of Leucania unipuncta in McLean and adjacent counties; natural 
history, injuries, and remedies. 
678. Forbes, S. A. Birds and canker worms. <Amer. Agric., 
November, 1881, v. 40, pp. 482-483; January, 1882, v. 41, pp. 
18-19. 
General report of a study made of the effect of birds upon the multiplica¬ 
tion of the canker worm in an orchard in Illinois. 
679. Forbes, S. A. The relations of birds to horticulture. <Rept. 
Mo. State Hortic. Soc., 1880-81, pp. 170-184. 
Food relations of the Turdidse. 
680. Forbes, S. A. The ornithological balance wheel. <Trans. Ill. 
State Hortic. Soc., 1881, n. s., v. 15, pp. 120-131. Extract: 
<Rept. State Hortic. Soc. Mich., 1881, p. 203. <Pacific Rural 
Press, 21 January, 1882. <Shawnee News, 13 February, 1882. 
Relations of birds to army worms, canker worms, and chinch bugs. 
681. Forbes, S. A. Aphis viticola. <Chicago Tribune, July, 1882. 
Letter to a correspondent, describing Aphis viticola, noting parasites which 
accompanied examples sent, and mentioning the usual remedies. 
