279. Forbes, S. A. Studies of the Contagious Diseases of Insects. Article IV. Bull. Ill. State Lab. Nat. Hist., Vol. II. Pr. paper covers, 1 plate. Peoria, 1886.$1.00
280. French, G. H. the Butterflies of the Eastern U. States. For Use of Classes in Zoology and Private Students. 402 pp., fully illus. A most useful Manual. Phila., 1886.$1.25
281. Gillmeister, Dr. C. J. F. Trichopterygia, Beschreibung und Abbildung der Haarflügeligen Käfer. 12mo, paper, 97 pp., 2 plain and 7 colored plates. [Frankfort, 1845.]$2.50
281A. Gould, Rev. Wm. An Account of English Ants, Their Different Species and Mechanisms, Manner of Government, etc., with other Curiosities Observable in these Surprising Insects. 12mo, calf, 109 pp., curious, very rare. London, 1747.$3.00
282. Hagen, Hermann. Synopsis of the Neuroptera of N. America. With List of the South American Species. Smiths. Miscell. Coll. Pr. covers, 346 pp., uncut. Wash., July, 1861.$2.75
283. Harris, T. W., M. D. A Treatise on Insects Injurious to Vegetation. The third and best ed., enlarged and improved. Illus. by colored engravings and cuts drawn under supervision of Prof. Agassiz. Ed. by C. L. Flint, of Mass. Board of Agric. Boston, 1862. Fine copy.$4.00
284. Harris, Thaddeus Wm. (M. D.) Entomological Correspondence of. Edited by S. H. Scudder. Portrait of Harris and 4 plates Insects, 2 colored; also woodcuts. Very rare. On fly-leaf is written “Henry W. Paine, Esq., with respects of Edward D. Harris.” 375 pp. Boston, 1869.$4.50
285. Holland, W. J. The Butterfly Book, a Popular Guide to a Knowledge of the Butterflies of N. America. 48 plates in color-photos., royal 8vo, uncut, first ed., fine impressions of colored plates. Published at $4.00. New York, 1899.$2.75
286. Holland. Moth Book. Any edition.$2.75
287. Howard, L. O. Mosquitoes. How They Live, Carry Disease, Are Classified and Destroyed. 241 pp., illus., as new. New York, 1901.$1.75