A POPULAR TREATISE ON THE COMMON INDIAN SNAKES. 555 





poison — secreting cells, and carries in its walls blood vessels which 

 convey the blood upon -which the poison cells depend for their 

 activity. After a period of activity, the pockets which converge 

 forwards and inwards towards the axis of the gland, become disten- 

 ded with poison, and this is poured into the central duct. At 

 the posterior pole the gland ends in a downward projecting lobe. 

 The fibrous capsule dips into the gland just in front of this lobe to 

 17 ' 



