30 
Forty-two and one-tenth milligrams cyanogen corresponds to 131.2 
milligrams sodium sulphocyanate ; hence 72.6 per cent of the sodium 
sulphocyanate injected had reappeared in the urine. 
In the following experiments smaller doses of the sulphocyanate 
were given; there was but little necrosis. 
Date. 
Weight of 
guinea pig. 
Remarks. 
December 11, 1905 
Grams. 
200 
Part of food soaked in 50 per cent alcohol. 
December 18, 1905 
205 
January 2, 1906 
270 
January 8, 1906 
325 
January 18, 1906 
375 
January 25, 1906 
400 
February 15, 1906 
485 
February 28, 1906 
545 
November 6, 1906 
670 
November 11, 1906 
630 
126 milligrams sodium sulphocyanate (0.2 mil- 
ligram per gram) subcutaneously. Sur- 
vived. 
The excretion of cyanogen was as follows: 
Day. 
Cyanogen. 
First day 
Milligrams. 
30.30 
5.35 
3.25 
38.90 
Second day 
Third day 
Total 
Thirty-eight and nine-tenths milligrams cyanogen corresponds to 
121.2 milligrams sodium sulphocyanate; hence 96 per cent of the 
sodium sulphocyanate was recovered from the urine. 
The control was as follows : 
Date. 
Weight of 
guinea pig. 
December 13, 1905 . . 
Grams. 
150 
225 
300 
385 
430 
490 
587 
670 
700 
January 2, 1906 
January 18, 1906 
February 15, 1906 
February 28' 1906 
March 23, 1906 
July 16, 1906 
October 6, 1906 
October 11, 1906 
Remarks. 
Food as in the preceding experiment except 
for the alcohol. 
140 milligrams sodium sulphocyanate (0.2 
milligram per gram) subcutaneously. Sur- 
vived. 
