Page:Philosophical Transactions - Volume 001.djvu/94

 Trade should be fully and punctually communicated in Print; which hath also been executed by one Monsieur Isnard, in a Treatise published at Paris, in French, Intitled, Instructions for the Planting of White Mulberryes, the Breeding of Silkworms, and the Ordering of Silk in Paris, and the circumjacent Places. In which Book, the Method being represented, which that Great Prince Henry IV. used in establishing the said Work and Trade, together with the success thereof, and the advantages thence derived to his Subjects, the Author, from his own Experience, and long Practice, delivers (and seems to do it candidly) all what belongs in this business in four main heads. First, he teaches the Means of sowing, planting, and raising White Mulberryes (as the Foundation of Silkworks) shewing how many several wayes that may be done. Secondly, The Breeding of Silkworms, the choosing of good Eggs, and their hatching, as also the Feeding of the Worms, and preserving them from Sickness, and Curing them of it, together with the way of making them spin to best advantage, Thirdly, The manner of winding their Silk from their Bottoms, adding the Scheme of the Instrument serving for that purpose. Fourthly, The way of keeping Silkworms Eggs for the ensuing year.

Through the whole Book are scattered many not inconsiderable particulars, though perhaps known to most. The White Mulberry Tree, as it is in other qualities preferable to the Black, so this Author esteems it the best, not onely for the durableness of the wood, and its large extent of usefulness in Carpentry and Joyners work; but also for the fitness of its leaves (besides their principal use for the food of Silkworms) to fatten Sheep, Goats, Cowes, and Hoggs, only by boyling and mingling them with Bran. The Berryes themselves he commends as very excellent to fatten Poultry, and to make them lay Eggs plentifully. In the Changes, Working, and Generation of this Insect, he is very curious to observe many things. Their Metamorphoses, as is known, are four, whereof the form of the one hath no conformity with any of the rest. The first from an Egge (of the bigness of a Mustard-seed, and of a darkish Gray Colour, when good) to a Worm or Caterpillar, but of a domestick, noble, and profitable kind; Black, when it first comes Rh