C 175 3 



56 



" The caterpillars are to be kept in the second and third drawers, 

 until their dung and litter do not readily fall through, and then to be 

 removed to the drawers with wicker bottoms, and fed thereon, till 

 they show symptoms of being ab >ut to spin. Each wicker drawer will 

 afford sufficient room for five hundred worms, when grown to their 

 full size." 



In order to give room for an increased stock of caterpillars, spare 

 drawers should be made to fit the three upper apartments v/ith wicker 

 bottoms, (or, in preference, with bottoms of vSplit rattans,) which may 

 be used for full grown worms. The annexed cut will give an accurate 

 idea of Mr, Swayne's apparatus. 



The shelves of the feeding frames of Messrs. Terhoeven, of Phila- 

 delphia county, are four feet square, and are fixed to upright posts; 

 they have two sets in one room, with passages between and around 

 them. This size enables a person to reach any part of them. Over 

 the shelves, are frames, placed on elects, and filled with split rattans, 

 at proper distances, to permit the litter to fall through. * 





See explanation of the plates. Plate 2(3, fig. 3. 



