88 



VETliRI N AKY PATHOLOGY. 



Fis. 6^.— Vm-Inaria Canina. r'.phalic ixticmity of femalo, magnified 



350 diameters, 

 a. Hockiets. b. Miiuth cavity. c. Oesophagus. 



Fig. i;Ja. Fig. i;4b. 



Fig. (JJa. Section of body of female, magnified 100 diamet.Ts, showing the 

 the ova to liave foiTned in wrirm not to exceed five weeks old. 

 a. Ovum. b. Intestine, 



Fig. K!b Caudal extremity of the female, magnified 100 diameters. 



also capable of combination with other sul:)stances a-^ bacterial 

 toxins. 



Toxic immunity is explained by Ehrlich as follows: Toxins 

 are composed of two essential chemic groups which are desig- 



