1^2 IMMUNITY IN HEALTH 



Spencer (1897) states, without quoting his 

 authority : — ''Carmine whiqh has been mixed with the 

 food of the animal passes out through the intact wall 

 of the intestines, especially by the way of the solitary 

 the agminated follicles." 



Bond (1917 and 1918) has described an exactly similar 

 process to phagotaxis on the granulating surface of 

 wounds, which he terms the "return immigration of 

 leucocytes." 



It is noteworthy that the small glandular lympho- 

 cytes indistinguishable morphologically from the lym- 

 phocytes of the blood are definitely motile and 

 phat^ocytic. 



