1839] 



FARMERS' REGISTER 



741 



The worms were what is generally termed the 

 " six-weeks sulphur," and it will be seen by the 

 above statement that they terminated their labors 

 in tvvenly-lbur days. The amount of cocoons 

 was 365 pounds, and it required 225 to weii^h a 

 pound. The amount of leaves led out was 3.970 

 pounds, which gives 11 pounds of leaves to a 

 pound of cocoons, and 9 pounds of cocoons being 

 required to produce a pound of silk, it will be seen 

 that by this system of teeding, 99 pounds ol leaves 

 only are necessary for one pound of silk. 



[in a subsequent number, the editors of the 

 < Silk Grower' remark as follows :] 



The conductors ofthis work have just published 

 a 'Synoptical Table for the most speedy growth 

 of Silk Worms,' translated from the French, in 

 which the size of the worm is given, as it actually 

 is, each day of its existence, and handsomely col- 

 ored. The (ceding was afier the manner of M. C. 

 Beauvais. with JVJ. Darcel's process of ventilation. 

 It will be recollected that this methed was adop- 

 by us, in a deixree, and the result published in our 

 last number, in which it was conclsively shown, 

 by our great success, that it is the most sure and 

 and profitable of any extant. There is but little 

 difierence between the result as (jiven in the plate, 

 and that obtained by us, ivs. C. Beauvais having 

 ])roduced 185 lbs. from 2,000 lbs. of leaves, and 

 we 356 lbs. from 3970 lbs. the difference being in his 

 favor, which, undoubtedly, is owinij to the plan of 

 ventilation (Darcel's) adopted by him, and which 

 it was impossible for us to use at the time ol'our rear- 

 ing. Next year we shall introduce it in our cocoonery 



to the full extent, and doubt not that our success 

 will be equal to that of M. Beauvais. 



We are fully satisfied that a properly regulated 

 temperature, ventilation, cleanliness, strict atten- 

 tion and the frequent leeding of the worms, aie 

 all that is required to enable the American people 

 to raise silk with a greater profit than can possibly 

 be done by any other nation, even if we take into 

 account the price of labor in different silk grow- 

 ing countries. Jjlessed with a proper soil, a suit- 

 able climate, and an energetic and enterprismg 

 population, America is destined to take the lead 

 in all that appertains to the culture and manufac- 

 ture of silk. 



THE NATURAL AND ARTIFICIAL SYSTEMS. 



[Retnarks on the two last articles,'] 



From tlie Journal of the American Silk Society. 



We are enabled in the present number to present 

 (0 our readers a fair example of each oft he two great 

 modes of raising silk worms, the natural and the 

 artificial. The first is that of the Rev. Mr. {Mc- 

 Lean, whose very lucid exposition of his experi- 

 ment forms the first article in this number; and the 

 second that of JMcssrs. Cheney, commencing at: 

 page 361. The first is strictly the natural system,- 

 and is the one that will be generallj' adopted by 

 the people at larire ; the second is clearly tlie arti- 

 ficial system, which will only belbllowed by those 

 who make a business of the silk culture, and who 

 of course will endeavor to make the most of time 



