SALIVA OF THE GILA MONSTER. 209 
4.31-32. Respiration still normal, 7. ¢., 35. 
4.35. Can still stand. 
4.36-37. Respirations 30. 
4.39-40. Respirations 31. 
4.46-47. Respirations 29; sits with eyes closed. 
4.53. Does not notice loud noises, as stamping on floor; cannot stand. 
4.55-56. Respirations 31. 
4.58. Head moves from side to side, slightly. 
4.59-5.00. Respirations 30. 
5.03—04, Respirations 34, slightly forced. 
5.09-10. Respirations 34, slightly forced. 
5.18-14. Respirations 43, a little more forced; head nodding. 
5.15-16. Respirations 36, nearly normal. 
5.18-19. Respirations 32, slightly forced. 
5.2122, Respirations 50, much forced. 
5.23-24. Respirations 32, convulsive. 
5.24—25. Respirations 23, convulsive. 
5.255. Raises tail and flaps wings. 
5.26—27. Respirations 13, weak. 
5.28. Heart still beating strongly and regularly. 
5.30. Death. 
Heart irritable and nerves of pectoral muscles, etc., likewise; blood very dark, semi-liquid, coagu- 
lating quickly; no local effects. 
THe HARMLESS SALIVA. 
There is, then, in the saliva of the Gila Monster a yery powerful poison which may 
be subjected to yery rough treatment without impairing its lethal vigor. This poison is 
present in the saliva of one yaw only. If, when collecting the mouth fluids, the rubber be 
properly placed between two layers of paper, the saliva from each jaw may be readily 
obtained unmixed with that of the other. When thus obtained and dissolved in water, 
the saliva of the upper jaw is a yellowish liquid, usually more or less tinted with blood, 
slightly alkaline, without any odor, and absolutely harmless at the very time when the 
lower jaw is flooded with deadly yenom. The quantity of saliva which may be collected 
from the upper jaw at any one time is only a little less than is obtainable from the lower ; 
but in one ease all of the saliva from the upper jaw was injected into a pigeon without 
causing the slightest ill effect, while one-fifth of that obtained at the same time from the 
lower jaw caused death in fifty-two minutes. 
The following experiments are quite numerous enough to show beyond doubt the 
difference in effect between the two kinds of saliva. 
