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cocoons are dried and preserved for reeling, after the 

 chrysalides are destroyed. I have described the dimen- 

 sions of a magnanerie, in the last section, of a size suit- 

 able for containing 1,000,000 silk-worms. An extensive 

 building should be of oblong form, and containing two 

 double ranges of stagings, with an aisle six feet wide 

 through the centre, and two other aisles of three or four 

 feet in width, running lengthwise next the walls ; for 

 these stagings should never be connected with the out- 

 side walls. Thin light boards will answer, with thin 

 ledges at the edges to confine the insects : these slide 

 into their places, and rest on their ends on narrow strips 

 of boards which are nailed to the upright posts. They 

 are arranged one above another in five courses or stories, 

 at the distance of fifteen inches asunder, the lowest 

 eighteen inches from the floor. More properly, these 

 hurdles may be formed of canes or rattans, or split bas- 

 ket stuff, as these being light, are more easily cleaned 

 and dried, with intervals of a quarter of an inch square 

 to admit the air to circulate through. 



Netting of twine, attached to the bottom of a square 

 frame of inch boards, forms a fine hurdle, and is deem- 

 ed a valuable improvement, as it saves much labor. 

 The silk-worms are fed on this netting, and the litter 

 passes through. The netting is secured to the frame 

 by common brads, and may be either formed by simply 

 stretching the twine first in one direction, and then 

 crossing it and weaving wholly by hand, or it may be 

 wove by machinery ; a few very thin laths may be placed 

 edgewise, at suitable intervals, as supports to the netting. 

 The meshes are half an inch wide or a little more! 

 Underneath are slides of paper for receiving the litter, 

 which all passes through. The slides are placed so 

 near, that if by accident the silk-worm gets through, he 

 may either continue feeding below, or, by reaching up- 

 wards, he rn.iy recover his former station on the netting, 

 at a fresh feeding. If a hurdle of this description, and 

 covered with fresh leaves, be placed on ledges, at th 



