49(3 COMMUNICATIONS AND CONSULTATIONS. 
large a mouthful at once. When he has been out in harness for 
a few hours he should be allowed to eat a little hay before he is 
fed, and should have water before feeding, and also afterwards, in 
moderate quantities. If I am right in supposing that there is 
always a swelling in a greater or less degree, there must be a sack 
or pouch in the gullet; and in that case it will be of great service 
to have a pad made about the size of a person’s hand, and placed 
so as to press on the enlargement at all times when he is in the 
stable. It may be adjusted by a sort of light false collar, or strap 
like one, attached on each side to the roller by straps running from 
the seat of draught, and one higher up, so as to keep up constant 
moderate pressure. I have found such an arrangement have the 
effect of completely preventing obstruction where a pouch has been 
formed in the gullet, and when other means have failed. 
If at any time in future he is attacked, a little well-boiled oat- 
meal gruel will be found the best thing to give him, or a little 
salt in a bottle of water, pressure being also applied with the hand 
to stroke the matter down the gullet : should these fail, the intro- 
duction of a probang is the most certain means of removing the 
obstruction. 
I do not think he will be in any way injured by the journey 
you propose. I am, Sir, &c. 
No. XXXII. 
14th August, 1845. 
Sir, — I have to thank you for your letter of the 10th of August, 
to the details of which I shall particularly attend. It struck me at 0 
first, as it does you, that the case resembled the globus hyste- 
ricus. The tumour shews itself more or less when standing in the 
stable, and then its site is just where the lower part of the collar 
touches. He is very deep along the line of the collar, and re- 
quires one of unusual size ; and I am not sure that he may not 
have received some injury from this not being observed when I 
first got him, and his working some days in too small a collar. 
But although this is a case in which you can always observe some 
enlargement when in the stable, it totally disappears as soon as he 
begins to work, and will not be visible at all, probably, until next 
morning. He is a greedy feeder, and I shall take care that he is 
fed in small quantities at a time, and frequently, instead of giving 
his feed at once. He has been perfectly well, and working daily 
since I wrote to you. 
To Professor Dick. 
