. Dennis' silk manual;. Silkworms. [from old catalog]; Silk industry. first crop should be exposed, as above directed, as soon as the mulberry leaves are one-fourth of an inch wide. Care must be taken that the mice do not get at the eggs, or young worms. After the eggs have been thus expo-. 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 Dennis, Jonathan, jr. [from old catalog]. New-York, M. Day & co.

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Keywords: ., bookcentury1800, bookdecade1830, booksubjectsilkind, bookyear1839