81 
D. SHEEP THYROID; 0.2 PER CENT IODINE. 
Date. 
Weight 
of rat. 
Remarks. 
1908. 
July 14 
33 
Feeding of cakes each containing 0.001 grn. thyroid begun. 
18 
31 
22 
30 
Morphine sulphate, 1.50 mgms., i. e., 0.05 mgm. per gm. rat. Survived. 
July 14 
60 
Thyroid as above. 
18 
54 
22 
53 
23 
Morphine sulphate, 3.18 mgms., i. e., 0.06 mgm. per gm. rat. Died 5 hours. 
July 14 
65 
Thyroid as above. 
18. . 
61 
22 i 
62 
23 1 
Morphine sulphate, 4.34 mgms., i. e., 0.07 mgm. per gm. rat. Died 2 hours. 
July 14 
40 
Thyroid as above. 
18 
40 
22 
38 j 
Morphine sulphate, 3.04 mgms., i. e., 0.08 mgm. per gm. rat. Died 5J hours. 
E. SHEEP THYROID; 0.19 PER CENT IODINE. 
1908. 
July 14 
61 
Feeding of cakes each containing 0.0005 gm. thyroid begun. 
18 
59 
22 
59 
Morphine sulphate, 5.31 mgms., i. e., 0.09 mgm. per gm. rat. Survived. 
July 14 
87 
Thyroid as above. 
18 
83 
22 
81 
Morphine sulphate, 8.91 mgms., i. e., 0.11 mgm. per gm. rat. Survived. 
July 14 
52 
Thyroid as above. 
18 
49 
22 
48 
Morphine sulphate, 5.76 mgms., i. e., 0.12 mgm. per gm. rat. Died 1 J hours. 
July 14 
75 
Thyroid as above. 
18 
71 
22.. 
74 
23 
Morphine sulphate, 9.62 mgms., i. e., 0.13 mgm. per gm. rat. Died 1J hours. 
F. SHEEP THYROID; 0.2 PER CENT IODINE. 
1908. 
July 14 
47 
Feeding of cakes each containing 0.0005 gm. thyroid begun. 
18 
46 
22 
46 
Morphine sulphate, 3.68 mgms., i. e., 0.08 mgm. per gm. rat. Survived. 
July 14 
48 
Thyroid as above. 
. 18 
50 
22 
47 
23 
Morphine sulphate, 4.23 mgms., i. e., 0.09 mgm. per gm. rat. Survived. 
July 14 
50 
Thyroid as above. 
18 
48 
22 
49 
23 
Morphine sulphate, 5.29 mgms., i. e., 0.11 mgm. per gm. rat. Died 3| hours. 
July 14 
47 
Thyroid as above. 
18 
45 
22 
43 
Morphine sulphate, 5.16 mgms., i. e., 0.12 mgm. per gm. rat. Died 12 hours. 
All of the controls (i. e., rats which had received no thyroid) died, 
so that we are unable to state the fatal dose. The smallest dose which 
killed was 0.2 mgm. per gram. 
61494— Bull. 47—09 6 
