153 
ENTOZOON-LIKE BODIES IN THE MUSCLES OF 
ANIMALS DESTROYED BY CATTLE PLAGUE. 
BY LIONEL S. BEALE, M.B., F.R.S., 
FELLOW OF THE ROYAL COLLEGE OF PHYSICIANS, PHYSICIAN TO KING’S 
COLLEGE HOSPITAL, AND PROFESSOR OF PHYSIOLOGY AND OF GENERAL 
AND MORBID ANATOMY IN KING’S COLLEGE, LONDON. 
A LTHOUGH the bodies I am about to describe are not 
peculiar to the muscles of animals which have died from 
the Cattle Plague, they are present in such large numbers, 
and are so very frequently met with, that it is desirable to 
inquire into their nature and origin. They are most numerous, 
but not most perfectly developed, in the muscular tissue of 
the heart. In this and other muscular tissue of ruminants 
slaughtered by the butcher, as well as in that of other animals, 
they were seen and imperfectly described more than five-and- 
twenty years ago by several German observers. They have 
never been found in the human subject. 
And it may be remarked that these bodies which are so fre- 
quently found in the muscular tissue of the sheep's heart, and to 
a less extent in the hearts of oxen in apparently fair health at 
the time of death, are not generally met with in the muscles of 
the body. Indeed, I have very frequently sought for them in 
vain in good mutton and beef; while, on the other hand, in 
the muscles of the system of animals dead of the Cattle Plague 
they are seldom absent, and they frequently attain a size and 
structure which are remarkable. 
It is most probable — indeed, it is almost certain — ’that these 
bodies are not directly concerned in the production of any of 
the phenomena characteristic of Cattle Plague, but it is not 
unlikely that the animals infested by them are the least 
vigorous, and therefore in some measure predisposed to take 
this or other highly contagious malady. 
But, if it could be shown that these bodies had nothing 
whatever to do with the cattle disease, directly or indirectly, it 
would nevertheless be important that they should be studied ; 
for would it not be absurd to suppose that such organisms 
vol. v. — xo. XIX. M 
