110 
Group. 
Weight of 
thyroid 
fresh. 
Weight of 
thyroid 
dried. 
Per cent of 
water. 
Per cent of 
iodine. 
6 ('iodoform') 
12. 40 
3.20 
74.2 
0. 21 
7 (normal) 
33. 05 
8. 69 
73.7 
. 10 
8 (normal) 
17. 40 
4. 60 
73.5 
.12 
The following experiments were performed with these thyroids and 
some of those of Series A. 
A. THYROID OF GROUP 8 (NORMAL); 0.12 PER CENT IODINE. 
Date. 
Weight 
of mouse. 
Remarks. 
1908. 
July 13 
19. 13 
Feeding of cakes, each containing 0.001 gm. thyroid, commenced. 
17 
17. 18 
21 
17.80 
Acetonitrile, 8.01 mgms., i. e., 0.45 mgm. per gm. mouse. Survived. 
July 13 
16. 40 
Thyroid as above. 
17 
15.89 
21 
15. 66 
Acetonitrile, 8.61 mgms., i. e., 0.55 mgm. per gm. mouse. Died 1 hour. 
July 13 
14. 51 
Thyroid as above. 
17 
14. 09 
21 
12. 73 
Acetonitrile, 8.91 mgms., i. e., 0.7 mgm. per gm. mouse. Died 2J hours. 
B. THYROID OF GROUP 2 (NORMAL); 0.111 PER CENT IODINE. 
1908. 
July 13 
17 
21 
July 13 
17 
21 
15. 36 
13. 78 
12. 45 
12. 81 
11. 59 
11.25 
Feeding of cakes, each containing 0.001 gm. thyroid, commenced. 
Acetonitrile, 8.09 mgms., i. e., 0.65 mgm. per gm. mouse. Died about 4 hours. 
Thyroid as above. 
Acetonitrile, 10.13 mgms., i. e., 0.9 mgm. per gm. mouse. Died 1 hour. 
C. 
THYROID OF GROUP 6 (IODOFORM); 0.21 PER CENT IODINE. 
1908. 
July 13 
14. 00 
Feeding of cakes, each containing 0.001 gm. thyroid, commenced. 
17 
13. 25 
21 
12. 17 
Acetonitrile, 10.95 mgms., i. e., 0.9 mgm. per gm. mouse. Survived. 
July 13 
11.80 
Thyroid as above. 
17 
10. 59 
21 
11.29 
Acetonitrile, 15.81 mgms., i. e., 1.4 mgms. per gm. mouse. Survived. 
July 13 
13. 78 
Thyroid as above. 
17 
14. 14 
21 
14.30 
Acetonitrile, 22.88 mgms., i. e., 1.6 mgms. per gm. mouse. Survived. 
July 13 
12. 25 
Thyroid as above. 
17 
12. 36 
21 
9. 84 
Acetonitrile, 18.70 mgms., i. e., 1.9 mgms. per gm. mouse. Died 1 hour. 
