First Table. REARING of SILK-WORMS proceeding from Five Ounces of Eggs. 
1813 
‘Days of 
rearing. 
Sorted Leaves given to 
the Silk-Worms. 
Leaves < 
lbs. oz. 
4 4 
6 0 
12 0 
6 4 
1 8 
30 0 
Small 
branches 
and 
leaves 
18 0 
30 0 
33 0 
9 0 
90 0 
Small 
branches 
and 
leaves 
30 0 
90 0 
97 8 
52 8 
30 0 
300 0 
Small 
branches 
and 
leaves 
0 0 
97 8 
165 0 
225 0 
255 0 
127 8 
30 0 
0 0 
900 0 
Small 
branches 
and 
leaves 
180 0 
270 0 
420 0 
540 0 
810 0 
975 0 
900 0 
660 0 
195 0 
240 0 
Internal 
tempcra- 
External 
tempera- 
ture. 
OBSERVATIONS. 
1st Age 
Day 1 
2 
3 
4 
2nd Age 
Day C 
7 
8 
9 
3rd Age 
Day 10 
11 
12 
13 
14 
■1th Age 
Day 15 
16 
17 
18 
19 
20 
21 
22 
5th Age 
Dav 23 
' 24 
25 
26 
27 
28 
29 
30 
31 
32 
May 18 
19 
20 
21 
75 
75 
75 
75 
75 
73 | 
73| 
73 
73 
71 $ 
71 £ 
71 
71 
71 
71 
71 
69 
69 
69 
69 
69 
69 
69 
69 
69 
68 
68 
68 
68 
69 
69 
69 
66 
64 
66 
66 
621 
64 
64 
64$ 
G6 
First Age. 
The day of rearing begins after twelve o'clock afternoon. 
Dry cold air. 
The exterior temperature was at the 62nd to Gitli degree, to the west at five o'clock in the morning. 
Second Age. 
Fine weather. 
Dry air. 
Third Age. 
Little variation in the extern;! temperature, south winds predominated, heavy air, rain. 
The dry air experienced iu the second age had imparted great vigour to the insects. 
Fourth Age. 
Some silk-worms placed in a temperature of 64 degrees became torpid dnriug fifty hours. 
The season was extremely unfavourable from the 13th until the 18th of June. The thermometer placed in (he 
west, stood daring the 15th, 16th, and 17th as low as 53 degrees, at five o’clock in the morning. Cold rain almost 
uninterrupted, although the barometer did not indicate great moisture of atmosphere. 
Weight of mulberry leaves per ounce of eggs 1609 pounds 8 ounces. The silk-worms proceeding from five ounces of eggs, which have consequently consumed 8047 pounds 8 ounces 
of leaf, produced 007 pounds 8 ounces of choice cocoons, and six pounds of coarse floss. About 20 pounds 1 ounce of leaves were consumed to a pound of cocoons. 
