46 COMPLETE INSTRUCTION IN 



Scientific experiments have proved that silkworm 

 eggs may be so managed that with the aid of cold- 

 storage (below 40 F.) they may be kept more 

 than a year, and taken out whenever the food 

 and accommodations for them are all ready. 



Eggs must be put into cold-storage while yet 

 the vital particles are seen floating separately in 

 the fluid contained in the shell. If they are put 

 into storage after these particles begin to concen- 

 trate round the outer edge of the egg forming the 

 outline of the worm, it is too late, and the worm 

 is at once chilled, and perishes. 



Eggs should be packed in layers of wadding to 

 keep the eggs from pressing too heavily on each 

 other. They should be put in a tin or sheet-iron 

 or even wooden box,- and covered closely, having 

 a laye^ of wadding on the top, inside the cover. 

 The box containing the eggs should be placed in 

 another box about three inches larger^ all round. 

 The space between the two boxes should be filled 

 with some woolen material to reject the dampness 

 if the storage be in a moist place. When the box 

 is opened to take out eggs for hatching, it should 

 never be removed to a warmer room. The eggs 

 should be taken out as quickly as possible and the 

 box again closed up. By observing the foregoing 

 instruction, the fact of producing silkworms is 

 completely under human control, and can be 

 done at any time and at all seasons of the year. 



