REARING SILKWORMS. 61 



nippers, when it can be done, as the down or 

 feathers of the millers should be preserved whole 

 as much as possible. If you take those from the 

 potassium, take them out with nippers one by 

 one as you operate, and inject a drop or two of 

 the liquid. Have some sterilized cotton conve- 

 nient, so as to absorb any moisture that may come 

 from the millers. 



Have ready as many mounting-cases as you 

 have millers. They are made as described. For 

 ten millers take ten pieces of heavy pasteboard 

 or very light wood, 2x2^ inches. Have a piece 

 of very smooth slat 42 inches long and 1 x \ inch 

 wide. Saw this up into twenty two-inch pieces. 

 Tack two of these pieces on the pasteboards, on 

 either side, so that there will be a groove of one 

 half-inch in the center between the side-pieces. 

 Tack them on the short way of the pieces. Into 

 this groove the body of the miller fits so as to 

 leave the wings horizontal with the body. This 

 is the proper way to mount the silk-miller. 



Put a little sterilized cotton in the groove. 

 Have library paste at hand. Take a piece of 

 tarlatan, and cut strips a little more than an 

 inch wide and about three inches long. Fasten 

 one end of the strip to the left side of the case, 

 on the upper end. Then take up the miller 

 and arrange it in the groove, with the wings 

 extending horizontally as far as possible, and in 



