COLOURLESS CORPUSCLES. 17 



With the further action of the water, the corpuscle bursts and the 

 granules are set free. 



Acids have an entirely different action upon the white corpuscles. 

 Their nuclei become somewhat shrunken and very distinct (fig. 15, 

 2 and 3), and a granular precipitate is formed in the protoplasm around 

 the nucleus. At the same time, a part of the protoplasm generally 

 swells out so as to form a clear bleb-like expansion (an appearance 

 which often accompanies the death of the corpuscle from other causes). 



