. The Bombyx mori (Linnæus) a manual of silk culture. nge to various hues, and finallybecome and remain a dark gray. The cloths onW^W*J which the eggs are laid should remain from twelveto twenty days, during which time the bivoltins will hatchout, as there are always some of these in every lot of worms if not fed will soon die, but if fed will produceanother crop. They require the same treatment as the remaining eggs will all be annuals, and must be pre-served for next years crop. Roll these cloths carefullytogether and place in tin boxes; two or more sides must beperfor
. The Bombyx mori (Linnæus) a manual of silk culture. nge to various hues, and finallybecome and remain a dark gray. The cloths onW^W*J which the eggs are laid should remain from twelveto twenty days, during which time the bivoltins will hatchout, as there are always some of these in every lot of worms if not fed will soon die, but if fed will produceanother crop. They require the same treatment as the remaining eggs will all be annuals, and must be pre-served for next years crop. Roll these cloths carefullytogether and place in tin boxes; two or more sides must beperforated to admit air, and the holes protected by fine wirenetting. If kept in close boxes the eggs would must be kept in a cool room or dry cellar, and examin-ed occasionally to see that the eggs do not become temperature should never be allowed to rise above fortydegrees, but may be allowed to sink to freezing point with-out injury. Great care must be taken as the weather growswarm, to prevent hatching before the leaves WEIGHING THE EGGS. IS Weighing the Eggs. *mj|F intended for sale, the pieces of cloth on which the Sir 1 e£Ss are t° ^e -^a^ should be accurately weighed in Troy grains. After the eggs are laid, the cloths should be again weighed. The difference between the two weights is the weight of the eggs. Both weights should be distinctly marked for the inspection of the purchaser. ,». + .» _ Varieties of the Silkworm. iHE silkworm proper, which produces the silk of com-|JM P| merce, belongs to the family Bombycidse or ^l Domestication has had much to do with producing the fj»r different varieties. Any one of these, transferred toa different climate, changes its character and silk productaccordingly. Some varieties produce but one brood a are called Annuals. Bivoltins produce two, the Trivol-tins three, and the Quadrivoltins four crops in a year. TheDacey, a variety known in India, produces eight generationsin one
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Keywords: ., bookcentury1800, bookdecade1880, bookidbombyxmorili, bookyear1882
