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ings, but here in California we have no need of it, as 

 when I want to hatch mine, I simply take the papers 

 on which my eggs are, from the cellar and carry them 

 to my garret, and there the heat caused by the sun 

 through the roof makes them hatch promptly, which 

 they generally begin to do on the third day and con- 

 tinue for a few days, permitting them generally to 

 hatch for four days ; the balance not hatched, which are 

 few, I throw away, considering that these late ones are 

 not very good. 



It is very important that those that hatch the first 

 day and those that hatch the second day, etc., should 

 be kept by themselves, and not mixed together. This 

 is very easy by marking with your pencil the papers on 

 which you put your young worms, with " No. 1 " " 2," 

 etc. This is necessary, because when they are moult- 

 ing, being of the same age, they are all moulting at 

 the same time, and if they were the different days or 

 ages mixed together, some would be moulting when 

 others want to eat, and those eating would be very in- 

 jurious to those in the critical function of casting off their 

 skins : they need at that moment to remain undisturbed. 



First Age. When the silkworms are hatched, they 

 are of a black color, one-twelfth of an inch in length ; 

 those of a red color may be thrown away, if there are 

 any. As soon as they are hatched they need to be fed ; 

 put on them then young and very tender leaves ; they 

 crawl on them, and then they are easily removed to 

 the papers and placed on the shelves by taking the 

 leaves on which they are. After, you feed them with 



