48 
THE ART, OP REARING 
receives, works, and sells, in the usual course of 
trade *. 
* Without quoting other years in which the spring was 
warmer than in 1S14, I will give an account of that year, in 
which I was obliged to retard, by some days, the hatching 
of the silk-worms. I will note the temperature of the stove- 
room, and the exterior temperature of this western room, at 
five o’clock, a.m. 
Temperature of the Stove-Room. 
May. 
Degrees (Fahrenheit), 
Exterior Temperature, 
11 
64 
. 53 
12 
64 
. 46 
13 
64 
. 45 
14 
64 
46 
15 
66 
4S 
16 
66 
. 53 
17 
68 
51 
IS 
71 
1 
51 
19 
73 
51 
20 
75 
53 
21 
77 
53 
22 
SO 
. 55 
23 
82 
. 53 
During these thirteen days, employed to prepare and ob- 
tain the hatching of the silk-worm, we used two quintals, one 
pound, of wood, large and small. I have already stated, that 
the brick stove is more convenient than that of iron, which 
consumes a vast quantity of fuel very speedily, and the heat 
of which, as it cannot be well regulated, may kill the silk- 
worms. I might have forced these eggs some days earlier, 
but I was obliged to keep them back, as the unfavourable 
weather had retarded the springing of the mulberry leaves. 
However, even thus, I gained three or four days upon the 
time ordinarily fixed for the hatching of the eggs in Chap. IV. 
$ 4 . 
