4 MEMOIRS OF TIIE NATIONAL ACADEMY OF SCIENCES. 



These lines finally marked the division into oblong crystals. The crystals after a few days became 

 very much larger. In one hundred and forty-four hours in the majority of the slides the 

 erythrocytes had lost nearly all their hemoglobin and were consequently quite pale. There was 

 no sign of any general disintegration of the corpuscles. 



Blood was mixed with a normal saline solution containing 10 per cent venom, equal parts. 

 The immediate effect was a diminution in the size of the corpuscles, the erythrocytes shrinking to 



5 micro millimeters in diameter, leaving only a slight biconcavity. The ameboid movement of 

 the leucocytes was very slow. In one hundred and forty-four hours the disintegration of all 

 corpuscles was apparent. 



Equal parts of blood and a normal saline solution containing 1 per cent venom gave only a 

 slight diminution in the size of the erythrocytes, and there was active movement in the polynuclear 

 leucocytes. In seventy-two hours disintegration was complete. 



Equal parts blood and a normal saline solution containing 0.2 to 0.01 per cent venom: The 

 immediate effect was only a slight increase in the refraction of the corpuscles when the dilutions 

 were below 0.05 per cent venom. When the mixture was made with dilutions above 0.05 per cent 

 venom there was no noticeable effect upon the corpuscles. In forty-eight hours the corpuscles 

 were nearly all destroyed. 



Hitman Blood. 



THE EFFECT ON HUMAN BLOOD OF DRIED VENOM REDISSOLVED IN DISTILLED WATER. 



The slides of normal blood showed but slight changes in forty-eight hours, and in one hundred 

 and forty-four hours all the corpuscles were broken down. 



Blood brought in contact with dried venom dissolved in water sufficient to make the specific 

 gravity 1.0.' 55 showed marked changes. In a few minutes a decided effect on the venom was 



