AMMONIA IN THE HUMAN BODY. 
405 
Experiments with Muriate of Ammonia. 
As in the first experiments on the same person, the dinner and breakfast were the 
same as before. 
(23.) Water passed from 7*' 30™ a.m. to 11'* 20 a.m. 7 ounces. When examined for 
nitric acid no trace was found. 
At 11** 20*** A.M. 120 grs. of muriate of ammonia were taken in 10 ounces of distilled 
water. 
At 2** 40™ p.M. 7i ounces of water passed contained so much nitric acid that the 
distillate required no condensation to give immediate evidence by all the tests. 
At o'* 50™ p.M. 8 ounces. No trace of nitric acid was found. 
At 11** 45™ p.M. 8 ounces. No nitric acid was detected. 
At 7'* 35*** A.M. 19 ounces. In this larger quantity a trace of nitric acid was found. 
At 7^ 35™ A.M. the day following, 42 ounces. Contained no trace of nitric acid ; to 
7** 35™ A.M. the day following, 38 ounces. The slightest trace of nitric acid was de- 
tected. 
(24.) The same person took 10 grs. of muriate of ammonia. 
The water passed from 7^* 30™ a.m. to 11** 10*** a.m., in quantity 4 ounces, previous 
to the muriate of ammonia, contained scarcely a trace of nitric acid. 
At 11'* 10™ A.M. 10 grs. of muriate of ammonia were taken in distilled water. 
At 2** 30™ p.M. 5 ounces of water eontained so much nitric acid that it was detect- 
able without evaporating the distillate. 
At O'* 50™ p.M. 5 ounces. The evaporated distillate gave nitric acid most readily. 
In this experiment a trace of nitric acid was found in the urine passed previous to 
the taking of the muriate of ammonia. The occurrence of minute traces of nitric acid 
after breakfast was also observed in (9.), (18.), (19.) and (25.) ; from these observa- 
tions it is not improbable that the nitric acid came from minute quantities of the 
salts of ammonia occasionally present in the food. 
(25.) By another person, 25 grs. of muriate of ammonia were taken. 
The urine made just previous to the medicine, was examined at midday; it con- 
tained a small quantity of nitric acid by the starch test, perhaps resulting from the 
tartrate of ammonia previously taken. 
At 12 o’clock 25 grs. of muriate of ammonia were taken in water. 
At 1** 30™ p.M. a very considerable quantity of nitric acid was detected by all the 
tests. 
At 4 p.M. nitric acid was detected without concentrating the distillate. 
At 12 p.M. no nitric acid could be detected. 
At 8 A.M. no nitric acid was found. 
(26.) A child, six years old, was given 10 grs. of muriate of ammonia in tea, at 
breakfast. The urine made during the day, up to 6 o’clock the following morning, 
in quantity 20 ounces, contained only a small quantity of nitric acid by the starch 
test. 
3 G 
MDCCCLT. 
