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Fire is then applied, and the water kept boiling, half 

 an hour or more, according to the size of the vessel, and 

 until the cocoons in the inner vessel shall have become as 

 hot as the boiling water. The cocoons are then spread 

 out in a dry room, that the moisture may evaporate 

 After this operation, the cocoons are ready for the reel 

 or for sale.* 



SPACE REQUIRED FOR SILK WORMS. 



It is calculated that the worms proceeding from one 

 ounce of eggs, which in numbers are estimated at 35 to 

 40,000, should have a space on the shelves, 



squ. ft. in. 



In the 1st age of - - - 74 



In the 2d age of 14 8 



In the 3d age of - - - - 34 10 

 In the 4th age of - - 82 6 



In the 5th age of - - - 183 4 



As a general rule they ought not to touch one another. 



QUANTITIES OF SILK YIELDED BY VARIOUS PARCELS 

 OF COCOONS, 



Eight pounds of cocoons (16 ozs. to the pound,) pro- 

 duced from 16 to 18 ounces of silk, 6 to 9 cocoons to 

 the thread. Mrs Williams obtained nearly one ounce 

 and a half, from 244 cocoons. 



Miss Rhodes had on an average one ounce from 244 

 cocoons. 



The estimates of the number of worms to make a 

 pound of spun silk are various. 



* This might do, perhaps, for a small quantity of cocoons, but I 

 think for a large one, it would cost too much, and give too much 

 trouble. 



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