152 THE VENOMS OF CERTAIN THANATOPHIDEyE. 



except in experiments 6 and 7 (where the blood was substituted by another liquid), 

 the peculiar extravasations of blood followed the application of the venom. 



"When the mesenteric vessels were tied as in experiments 8, 9, and 10, there was 

 a delay in the appearance of the hemorrhages. When the vessels were tied in two 

 places, as in experiments 11 and 12, so as to cut off the circulation in a great 

 measure, the hemorrhages appeared hardly appreciable to the naked eye. And as 

 we have seen above, there was no extravasation at all when the blood was substi- 

 tuted by an artificial liquid, as in experiments 6 and 7. 



Therefore, the hemorrhagei become less marked in proportion to the interference 

 with the circulation of the blood in the part. 



