ME. J. PEIESTLET ON THE PHYSIOLOGICAL ACTION OF VANADIUM. 
549 
Table ( continued ). 
Time. 
Remarks. 
Strength of acid 
per cent. 
Number of se- 
conds between 
immersion and 
contraction. 
Mean number 
of seconds. 
1 K m. 
12 20 a.m. 
Tips of toes immersed 
•5 
» 
s 
4 
5 
4 
12 25 

•5 
5 
6 
5 
4 
4 
5 
5 
12 35 
” ” ” 
•5 
10 
5 
9 
5 
6 
12 49 
Only slight movement occurred 
•5 
7 
11 
to 
Marked contraction. 
10 
12 52 
13 
11 
10 
15 
11 
11-5 
12 57 
No movement at all 
•5 
100 
„ „ „ 
100 
1 2 
„ „ „ 
i 
60 
1 5 
The acid was allowed to cover more of the feet ; 
contraction occurred 
1 
5 
4 
6 
6 
Slight movement 
17 
No movement at all 
60 
1 10 
Heart exposed and found to be heating, though 
languidly. 
1 15 
After immersing the whole foot in acid, twitches 
were observed 
1 
7 
Again twitches of calf-muscles occurred 
1 
50 
No movement at all 
1 
150 
Cord exposed in middle of back, and excited; 
contractions with secondary coil at 15. 
Decapitated ; irritated exposed end of cord ; con- 
traction with secondary coil at 10 to 12. 
1 
Exp. LXXIV.— June 2, 1874. 
Frog. — Weight 27 grms. 
Dose *5 cub. centim. of the 5 per cent, solution (25 milligrammes 
h m V 2 0 5 ), injected subcutaneously. 
June 1. 7 30 p.m. Cord cut and brain destroyed. 
June 2. 4 7 p.m. Injection complete and experiment commenced. 
In rather more than an hour reflex activity had ceased. 
