440 
SECRETION OF MILK IN FOALS. 
facts stated therein ; but, at any rate, in many points of 
view the subject of the administration of so powerful a drug 
as arsenic to brute animals, and especially to that valuable 
one, the horse — to say nothing in this place of its adminis- 
tration to his master — man — is a subject well deserving the 
most careful and scientific investigation, as one of great 
practical interest to all concerned in the economy of the 
horse. 
52 , Park Street, Grosvenor Square ; 
June 19 , 1855 . 
ON THE SECRETION OF MILK IN FOALS. 
In our last number we recorded an instance of the mam- 
mary glands of a foal acting freely, especially when the little 
animal was withdrawing milk from its mother. 
For the following communication we are obliged to Pro- 
fessor Spooner, who received it some time since : 
Brandon, Suffolk ; June 10 , 1852 . 
Sir, — Rather a remarkable circumstance being observed 
in the case of a young foal in this neighbourhood, the owner 
has requested me to write you the particulars, partly as 
affording you, perhaps, information of a fact seldom occurring, 
and also for the sake of hearing your opinion in reference to 
the same. 
The foal in question was observed, before it was a fortnight 
old, to be full in the bag, precisely like a full-aged mare; 
and the milk actually dropped from it. It did so yesterday 
when I saw it. Perhaps you will say whether this freak of 
nature is prejudicial to the healthiness of the foal ; and whether 
such an occurrence has come under your notice before. 
1 remain. Sir, 
Yours respectfully, 
John Cock. 
[Cases of this curious occurrence are registered in the 
scientific annals of the last century, but it has only attracted 
particular attention of late years. In Rainard’s well-known 
treatise on the parturition of domesticated animals are some 
observations in point, wRich we translate. 
<£ Lecoq has seen tw r o fillies foaled with the mammae larger 
than usual; the teats were also more developed. Having 
