41 
Series V. 
A. THYROID OF ALASKAN BEAR; IODINE FREE. 
Date. 
Weight of 
mouse. 
Remarks. 
1908. 
May 19 
16.54 
Feeding of cakes each containing 0.005 gin. thyroid begun. 
23 
15. 49 
97 
15. 25 
Acetonitrile, 6.87 mgms., i. e., 0.45 mgm. per gm. mouse. Survived. 
May 19 
11.83 
Thyroid as above. 
23 
11.35 
27 
10.13 
28 
Acetonitrile, 4.86 mgms., i. e., 0.48 mgm. per gm. mouse. Survived. 
Thyroid as above. 
May 19 
16.75 
23 
16.77 
27 
16.23 
Acetonitrile, 8.44 mgms., i. e., 0.52 mgm. per gm. mouse. Died 2§ hours. 
May 19 
17.43 
Thyroid as above. 
23 
16.66 
27 
16.33 
Acetonitrile, 9.80 mgms., i. e., 0.60 mgm. per gm. mouse. Died 1J hours. 
B. THYROID OF AOUDAD; IODINE FREE. 
1908. 
* 
May 19 
15. 39 
Feeding of cakes each containing 0.005 gm. thyroid begun. 
23 
17. 03 
27 
16.00 
28 
Acetonitrile, 6.40 mgms., i. e., 0.40 mgm. per gm. mouse. Died 1§ hours. 
May 19 
15.87 
Thyroid as above. 
23 
15. 73 
27 
14. 65 
Acetonitrile, 7.62 mgms., i. e., 0.52 mgm. per gm. mouse. Died 2 \ hours 
May 19 
15.07 
Thyroid as above. 
23 
14.30 
97 
13.50 
Acetonitrile, 8.10 mgms., i. e., 0.60 mgm. per gm. mouse. Died 2 hours. 
C. THYROID OF BLACK LEOPARD; 0.01 PER CENT IODINE. 
1908. 
May 19 
19.12 
Feeding of cakes, each containing 0.005 gm. thyroid begun. 
23 
18. 15 
27 
18. 99 
28 
Acetonitrile, 9.50 mgms., i. e., 0.50 mgm. per gm. mouse. Died 1^ hours. 
May 19 
18.03 
Thyroid as above. 
23 
17. 32 
27 
16. 65 
Acetonitrile, 11.66 mgms., i. e., 0.70 mgm. per gm. mouse. Died 2£ hours. 
May 19 
19.04 
Thyroid as above. 
23 
18.78 
27 
18.56 
Acetonitrile, 16.70 mgms., i. e., 0.90 mgm. per gm. mouse. Died 3 hours. 
