314 
DROPSY AND THICKENING OF THE PERICARDIUM. 
Diagram. 
a 
Eye * 
* Eye 
b 
a the horizontal line from eye to eye. 
h the vertical line. 
The two round spots denote where the trephine is to be placed. 
The operation can be performed at either side of the vertical line : 
the most correct way to do it is to place the trephine so that the 
circle of the trephine will come to within a quarter of an inch of 
both lines. 
DROPSY AND THICKENING OF THE PERICARDIUM 
IN A COW, CAUSED BY A NEEDLE STICKING IN IT. 
Hy Mr. W. A. Cartwright, of Whitchurch. 
ON Monday, 24th of March, 1828, I saw a cow of Mr. 
Tudman^s, of Black Park, at nearly her time of calving. The 
owner had taken about two quarts of blood from her, and given 
her a pound of salts, as he thought her staked. 
Symptoms .—Lies down • grunts, but scarcely more than cows 
generally do that are so near calving. Horns and body wami; 
pulse quick, and feeble; dullness and unwillingness to move. 
The salts had not operated, and I deferred administering any 
medicine until towards night. 
7 p. M. —Bowels not opened. Pulse quicker, respiration 
more laborious. Took about six quarts of blood from her, and 
gave her aloes bbds. 3iij in gruel, and ordered her to have plenty 
of clysters and to be walked about a little. 
25th.—No alteration. Bowels not opened. R ol. lini. Ibifs, 
tinct. opii. in some gruel. 
27th.—Pulse can now scarcely be felt; eats nothing; bowels 
constipated ; stales freely. Does not appear to be in acute pain. 
R ol. lini. lbj> sps. terebinth. 3j. sem. croton, gr. x, in gruel. 
