THE COMMUNICABLE DISEASES 499 
resistance to the tuberculous disease. Connective tissue 
activity is characteristic of the process, considerable dis- 
tortion being produced by the fibrosis. This feature is 
borne out where the tissues are studied microscopically. 
Definite milia are sometimes found, but they consist 
of epithelioid and round cells with imperfect caseation, 
giant cells being often missing. About the miliary 
tubercles a diffuse and not essentially specific tuberculous 
granulation tissue is found, mixed ^vith which is much 
connective tissue growth. The fibrotic adhesion-form- 
ing serous membrane tuberculosis of carnivores seems 
worthy of emphasis by the citing of a case in point. 
White-nosed coati {Nasua narica), was received in poor 
condition and died in a few days. Upon dissection a 
slightly turbid yellowish fluid was found to occupy what 
remained of the peritoneal cavity which was reduced in 
size by dense adhesions of the intestines into an inflam- 
matory mass. The omentum was a diffuse thickened 
apron, also beset with fine tubercles, lying over the mass. 
Fine young tubercles could also be found upon the 
intestines and liver while the mesenteric lymph nodes 
were early in caseation ; thoracic organs not infected. 
One of the most interesting cases concerned hyper- 
trophic osteitis in a chronically tuberculous lion ; the feet 
are discussed on page 346. This process was described 
by Marie for human beings many years ago, and was 
reported in dogs by Cadiot(l) in 1912. This beast was 
one of five large cats which have died from tuberculosis 
in its chronic ulcerative form. Three of the cats, one fox 
and the bear showed definite cavitations of a ragged locu- 
lated form. The cavities were usually of the multiple 
variety and were found in the posterior, that is lower lobe. 
Rodentia. The paucity of cases in this order permits 
little information to be drawn from the form of tubercu- 
losis. The total seems to have been swollen by a group of 
three beavers, all of which came in one shipment. The 
(1) Rev. de Med. Vet. T. 89, p. 221. 
