WILL DIVIDE 55 



the nuclei were stained a deep blue and the 

 lymphocytes exhibited their ring-shaped centro- 

 somes (nucleoli) darkly coloured either in or 

 near the nucleus. In about one in every hundred 

 of the erythrocytes there were seen the granules, 

 already described, stained the amount of granu- 

 lation varying in individual cells. If such a 

 specimen is watched it will be noticed that some 

 of the red cells gradually haemolyse they become 

 pale and then fade as the haemoglobin diffuses 

 out through the cell- wall. This will occur in 

 some of the cells only; and should any of them 

 possess granules, the granules will remain stained 

 for some time after the haemoglobin has dis- 

 appeared the granules showing up stained 

 through the wall of the colourless bladder. If 

 the specimen is incubated longer, many of the 

 red cells will take up the stain, which seems to 

 combine with their haemoglobin. The degree of 

 staining varies in individual cells perhaps with 

 their age or with their content of oxygen. But 

 although auxetics in such a jelly may induce 

 divisions in leucocytes and lymphocytes, they will 

 not produce divisions in healthy red cells, granular 

 or otherwise, even when under similar conditions 

 of environment. 



But if instead of healthy blood, that of an animal 

 suffering from severe secondary anaemia was placed 

 upon such a jelly and incubated, then those ery- 

 throcytes which were highly granular would be 

 seen in the act of division after the incubation of 

 ten minutes ; but these divisions can only be seen 

 in those cells which possess a number of granules 

 packed in the centre. 



