614 UNUSUAL LONG PERIOD OF UTERO-GESTATION. 
This case not only proves the early impregnation of the heifer, 
but also the early generative powers of the bull. 
[When talking, a few days ago, with my friend, Mr. Wright, 
of Burnham Overy, he informed me that he had with much dif¬ 
ficulty extracted a dead calf from a cow, if she may be so termed, 
fourteen months old; consequently she could not have been more 
than five months old at the period of impregnation.—Y.] 
UNUSUAL LONG PERIOD OF UTERO-GESTATION. 
By the same. 
On the 8th of August 1834, Mr. H. K. Hales, of this town, 
had a half bred mare of his, eleven years old, covered for the 
first and only time by a grey half-bred colt of his own breeding, 
and three years old. 
When her time was up for foaling, he sent for her home, to be 
taken care of; but after keeping her for five weeks, and seeing no 
greater probability of her doing so than when she first returned, he 
sent her back again to her former pasture, a distance of ten miles 
from hence. During this time her udder increased in size, but 
varied occasionally. 
On the 24th September 1835, she foaled in the field a small, 
weak, pretty filley colt, but which soon became hearty, and is 
now very well, but rather small. 
This mare consequently must have gone two calendar months 
and sixteen days, or seventy-eight days, over the usual period of 
gestation, and, as far as I am aware of, a period of eighteen 
days more than any on record. 
[Tessier, in the account which he gives of the period of utero- 
gestation in different animals, says, that in 582 mares that ad¬ 
mitted the horse only once, the shortest period was 287, und 
the longest 419 days, being 89 days over and 43 under j” and that 
in 312 mares which had been leaped several times, and dating 
from the last, the shortest period was 290 days, and the longest 
377 days j or, reckoning from the 330th day, or eleven months, 
forty-seven days over, and forty under.”—Y.] 
