PROCEEDINGS OF SECTION K. 719 



No. 5. — Crown lemur. An adult animal. Chromatin 

 bodies present, but very scanty. No special disposition. One 

 normoblast seen. 



No. 6. — Crown lemur. An adult animal. Chromatin 

 bodies present, but scarce. Slight polychromatophilia. 



No. 7. — Black lemur. Adult. Chromatin bodies fairly 

 numerous. One or two in every field of the microscope. 

 Size and disposition varies. 



No. 8. — Black lemur. Half -grown animal. Chromatin 

 bodies very scarce. Only one or two found after prolonged 

 search. Red corpuscles normal. 



Chromatin Bodies in the Qu.\drumana. 



During the past two years I have examined the blood of 

 twenty-five members of this order, comprising various species. 

 The examination was in every case carried out post-mortem. 

 Death having been due to various causes, most of them ascertained. 

 In only two of the twenty-five animals were the chromatin bodies 

 under discussion discovered, viz.: — (1) A white-fronted Capuchin 

 monkey (Cebus alhifrons), and (2) an Orang-utan (Simia 

 satyr us). The details are as follows: — White-fronted Capuchin 

 monkey. Received at the Zoological Gardens, 3rd September, 1912. 

 Died 30th of same month. Fost-mortem examination. An abscess 

 cavity about the size of a walnut present in the submaxillary 

 space. This had been treated, but the pus had burrowed into 

 the parotid region. Metastatic, abscesses were present in the 

 lungs, spleen, liver, and kidneys. Blood lesions were marked 

 upon miscroscopic examination. Megalocytes being very numer- 

 ous. Chromatin bodies were plentiful, the size varying con- 

 siderably, up to that of half the nucleus of a normoblast. They 

 were indifferently disposed within the corpuscle, a number being 

 distinctly marginal. No free bodies were seen in the slides ex- 

 amined. All were intra-corpuscular. This fact should be borne 

 in mind as it may probably be suggested that the bodies found 

 in the blood of this animal might really be staphylococci, as these 

 were the cause of the metastatic abscesses, and therefore some of 

 the cocci must be present in the blood stream. This argument is 

 quite a reasonable one, but the bodies described varied in size too 

 greatly, some being too large and others too small for staphy- 

 lococci. Besides, all the bodies I observed were inside the red 

 corpuscles; none were free in the plasma. It must, however, 

 be admitted that the chromatin bodies and staphylococci cannot 

 be distinguished from each other by their staining reactions when 

 the usual chromatin stains are employed, nor by their morphology 

 when both are about the same size. 



