A COW THAT HAD BEEN CHOAKED THREE DAYS. 337 
A frequent and most important consequence of the operation, and 
one that succeeds the method of extraction, as well as that of de- 
pression, is an opacity of the capsule of the chrystalline lens. This 
secondary cataract will appear when no inflammation has suc- 
ceeded the operation. It will sometimes disappear by the effect 
of time, as in cases of cataract from blows or punctures ; but this 
event is often slow, and always uncertain. 
“As the opacity of the capsule, which forms the secondary 
cataract, is usually diminished in some degree by time, I consult 
the inclination of my patients with respect to the time and fre- 
quency of these secondary operations. 
“ The lady, whose description of the pain arising from the ope- 
ration I have already mentioned, had a secondary cataract in each 
eye. She chose to have the operation repeated upon one eye, 
and to wait the effect of time upon the other. Both methods 
succeeded ; but there was no return of transparency in the cap- 
sule of that eye for which the needle was not employed, till 
about six months after the depression of the cataract/’ 
From W. Hey’ s Practical Observations in 
Surgery , 2d edit. p. 58, &c. 
AN ACCOUNT OF A COW THAT HAD BEEN 
CHOAKED DURING THREE DAYS. 
By the same. 
Nov. 27 th 9 1840. — I went this afternoon to unchoak a cow 
of Mr. Sand ford’s, of Brick Lane. She was put up to feed on 
turnips, &c. She had had something amiss with her for three 
days, but whether from being choaked they could not tell for 
certain ; but she would, after she had eaten turnips, throw them 
up again. They kept the sole in her mouth (a common practice 
in this country) all this time, but she did not get any better. 
When I went I saw her eat some turnips, and found they went 
down the oesophagus, below the breast, but soon after she vomited 
them up again with the greatest ease. 1 therefore considered her 
to be choaked, or, perhaps, having some disease of the stomach 
that caused her to vomit. I was inclined to lean to the former 
opinion, and immediately passed the probang; and I fancied, when 
it was nearly at the stomach, something gave way. I ordered 
her to have only a moist mash or gruel. 
The next morning I was again sent for, as the cow was as bad 
as ever, from having had turnips. I accordingly went, and again 
introduced the probang, and l thought l felt a similar slight ob- 
