253. Comstock, J. Henry. Report upon Cotton Insects. 511 pp., col. plates, cuts. Wash., 1879.$2.00
254. Cotton, Wm. Chas. My Bee Book. 368 pp., numerous woodcuts. A most interesting work, having reprints of ancient bee books, bibliography, etc. London, 1842.$2.00
255. Cox, Herbert E. A Handbook of the Coleoptera, or Beetles of Great Britain and Ireland. 2 vols. uncut. Indispensable. London, 1874.$7.00
255A. Dandolo, Count. The Art of Rearing Silk-worms. Trans. from Work of Count Dandolo. 365 pp., uncut, folding plates. London, 1825.$2.50
256. Dawson, John F. Geodephaga Brittanica. A Monograph of the Carnivorous Ground Beetles, Indigenous to the British Isles. 3 col. plates, uncut. London, 1854.$1.50
256A. Desvignes, Thos. Insects, Parasitic Files. Catalogue of British Ichneumonidæ in Collection of British Museum. 12mo, paper covers, 120 pp., several new spp. described, very scarce. London, 1856.$2.25
257. D’Homergue, John. Silk Culturists’ Manual. A Popular Treatise on Mulberry Trees, Silk Worms and Silk. Addressed to Farmers and Planters of the U. S. A compendious 12mo manual of 406 pp. of historic and scientific importance. Folding frontis., plate, orig. cloth, paper label, first ed., scarce. Phila., 1839.$2.50
258. D’Homergue, J., and Duponceau, P. S. Essays on American Silk, and making it a source of Wealth. Also, Directions to Farmers for raising Silk Worms. 12mo, paper covers, uncut, illus. 120 pp., Phila., 1830.$1.50
259. Diptera, Etc. Bull. of the U. S. Geolog. and Geogr. Survey of the Territories. Entirely devoted to Insects (3 Arts.) by Uhler, Osten-Sacken and Thorell. Pr. paper covers, 529 pp., illus., rare. Wash., 1877.$3.00
260. Domestica, Acheta (Miss M. L. Budgen). Episodes of Insect Life. 3 vols. Orig. cloth with quaint design, gilt, numerous illus. London, 1st series, 1852; 2nd and 3rd series, 1851. Complete set.$4.25