PROCEEDINGS OP SECTION K. 71.) 



Since Theiler's work, a number of observations have been made, 

 as already stated, on the presence of similar bodies in other species. 

 In some instances, the observers have either named the bodies so 

 found Anaplasms, or have declared their parasitic nature upon 

 little or no satisfactory evidence. 



The presence of small ' rounded chromatin bodies in the red 

 blood corpuscles was, according to Balfour, first described by 

 Jolly in rodents, and they are usually termed Jolly Bodies. 

 The view held by the latter is that they probably result from 

 hydration of the stroma of the corpuscle. Another view is that 

 they are chromatin remnants of the red cell. (I am not aware that 

 any one has advanced the opinion that the chromatin bodies in the 

 erythrocytes of rodents are parasitic.) 



Up to the present, however, no satisfactory evidence has been 

 brought forward to show whether the chromatin bodies discovered 

 in the blood of animals, other than cattle or rodents, should be 

 classified with the anaplasmata of Theiler, or the bodies of Jolly. 

 Bruce (2) has expressed the opinion tTiat the parasitic nature of 

 the chromatin bodies recorded by him from the blood of calves and 

 goats in Uganda was not proved. Jowett (3) records the presence 

 of anaplasms in the blood of cats, although Morris (4) states that 

 portions of the nuclear matter of the red cells occur normally in 

 the circulating blood of these animals. Balfour (5) considers that 

 certain bodies found by him in the erythrocytes of donkeys in the 

 Sudan were anaplasms, and not Jolly bodies, although the grounds 

 for arriving at such a conclusion do not appear very secure. In 

 an article by Sweet, Gilruth, and Dodd (6) upon the presence of 

 bodies apparently identical with Anaplasma marginale in the blood 

 of various animals, chiefly marsupials and monotremes, the opinion 

 was expressed that they were possibly parasitic, but with no patho- 

 logical significance. The last-named author is, however, of the 

 opinion that the evidence is decidedly against their parasitic 

 nature. 



As it is desirable that all the evidence possible concerning these 

 bodies shall be collected in order to arrive at some definite con- 

 clusion as to their exact nature, the following observations have 

 been recorded. They have been made upon nearly 300 animals 

 (excluding those of the domestic species) comprising a variety of 

 orders. The great majority of them were obtained from the 

 gardens of the Royal Zoological Society, Sydney. Nearly all of 

 the examinations were made post mortem, but in a number of 

 positive cases, blood was also obtained from the living animal. 



Chromatin Bodies in the Erythrocytes of the TRAGULiD.a:. 

 The member of the above order in which the bodies were found 

 was the so-called Mouse-deer of Java {Tragulus javanicus). These 

 little animals are very interesting in several respects. They are 



