. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 29.—Elements of the mechanism of a modern silk reel (original). A, in which is a perforated steam-pipe, P, by means of which the water in the basin may be heated. A few inches above the surface of the water is placed a perforated agate, B. The cocoons having undergone tUe three operations mentioned, the ends of the filanTfents of four or more. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustr
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 29.—Elements of the mechanism of a modern silk reel (original). A, in which is a perforated steam-pipe, P, by means of which the water in the basin may be heated. A few inches above the surface of the water is placed a perforated agate, B. The cocoons having undergone tUe three operations mentioned, the ends of the filanTfents of four or more. 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 United States. Bureau of Entomology. Washington : G. P. O.
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Keywords: ., bookcentury1800, booksubjectentomology, booksubjectinsects, booky
