. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. Fig. 46.—Insect breeding cage, a, Sliding glass door; b, galvanized iron base; c, galvanized iron holder for records; d, wooden base; e, wooden bottom detachable. Sides are covered with cheesecloth. {After Webster.). Fig. 47.—A gasoline or electric trap lantern with attachment of four cups for nsects, which fit into each other and are separated by netting of different sizes, and one for cyanide at the bottom. {After photo by Davis.). Please note that these images are extracted from sca

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. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. Fig. 46.—Insect breeding cage, a, Sliding glass door; b, galvanized iron base; c, galvanized iron holder for records; d, wooden base; e, wooden bottom detachable. Sides are covered with cheesecloth. {After Webster.). Fig. 47.—A gasoline or electric trap lantern with attachment of four cups for nsects, which fit into each other and are separated by netting of different sizes, and one for cyanide at the bottom. {After photo by Davis.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lochhead, William, 1864- [from old catalog]. Philadelphia, P. Blakiston's son & co

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Size: 1273px × 1964px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919