31 
Series I. — Controls. 
[Plain cakes; Feeding mice unmedicated cakes (4 grams cracker dust to 4 parts water, dried at 50-60° C.)-] 
Weight of mice in grams. 
Date. 
1908. 
2. 3. 
December 3.. . 
20. 38 
18. 04 
December 7 
19. 76 
16. 95 
December 11 
19. 75 
16. 38 
December 18 
18. 50 
16. 02 
December 23 
18.14 
15.52 
December 27 
16. 65 
14. 55 
December 30 
16. 28 
14. 01 
18. 40 
17.76 
17. 78 
17. 40 
17.24 
15. 87 
15. 47 
4. 
20. 94 
18. 64 
18. 29 
18. 53 
15. 12 
14. 00 
13.16 
January 4. 
January 7. 
January 11 
January 15 
January 19 
January 23 
1909. 
15. 02 
13.33 
13.60 
11.97 
14. 97 
14. 37 
14. 49 
14. 07 
14. 47 
13. 59 
12. 41 
12.23 
11.45 
11.40 
No. 1, dead January 7, 35 days; No. 2, dead January 12, 40 days; No. 3, dead January 18, 46 days; 
No. 4, dead January 25, 53 days. 
[Caffeine: Feeding mice 0.040 gram caffeine citrate per cake.] 
Date. 
Weight of mice in grams. 
1. 
2. 
3. 
4. 
1908. 
December 3 
14. 78 
18. 48 
17. 50 
22. 88 
December 7 
13.12 
17. 32 
15. 06 
21.52 
December 11 
12. 62 
17.24 
14. 73 
19.81 
December 18 
11.45 
16.71 
13. 70 
20.05 
December 23 
12. 18 
17.15 
14.21 
20. 47 
December 27 
10.90 
15. 87 
13. 30 
20.82 
December 30 
11.68 
14. 51 
13. 76 
20. 26 
1909. 
January 4 
i 11.08 
14. 33 
13. 00 
19. 91 
January 7 
14. 51 
12.69 
15.60 
January 11 
13. 47 
12. 31 
15. 31 
January 15 
11.99 
11.99 
15. 20 
Januarv 19 
11.92 
15. 02 
Januarv > 
14. 96 
i ; 
No. 1, dead January 7, 35 days; No. 2, dead January 15, 43 days; No. 3, dead January 16, 44 days; 
No. 4, dead January 23, 51 days. 
[Acetanilide: Feeding mice 0.050 gram acetanilide per cake.] 
Date. 
Weight of mice in grams. 
1. 
2. 
3. 
4. 
1908. 
December 3 
December 5 
December 7 
20.13 
17.10 
17.38 
13.47 
11.57 
20.36 
16. 65 
17.15 
17. 96 
16.11 
14.20 
12. 39 
11.62 
11.16 
9.91 
10. 24 
9. 30 
8. 79 
December 9 
December 11.. 
December 15 
December 19 
1 
December 21.. 
December 23 - 
1 
i 1 
No. 1, dead December 6, 3 days; No. 2, dead December 8, 5 days; No. 3, dead December 10, 7 days; 
No, 4, dead December 23, 20 days. 
