d four days gave birth to a hybrid, which
had, as was expected, distinct marks of the Quagga, in the shape of
its head, black bars on the legs and shoulders, &c. In 1817, 1818 and
1821, the same mare was covered by a very fine black Arabian horse,
and produced successively three foals, and although she had not seen
the Quagga since 1816, they all bore his curious and unequivocal
markings.

Since the occurrence of this case numerous others of a similar
character have been observed, a few of which may be mentioned. Mr.
McGillivray says, that in several foals in the royal stud at Hampton
Court, got by the horse "Actaeon," there were unmistakable marks of the
horse "Colonel." The dams of these foals were bred from by Colonel the
previous year.

A colt, the property of the Earl of Suffield, got by "Laurel," so
resembled another horse, "Camel," that it was whispered and even
asserted at Newmarket that he must have been got by "Camel." It was
ascertained, however, that the mother of the colt bore a foal the
previous year by "Camel."

Alex. Morrison, Esq., of Bognie, had a fine Clydesdale mare which in
1843 was served by a Spanish ass and produced a mule. She afterwards
had a colt by a horse, which bore a very marked likeness to a
mule--seen at a distance, every one sets it down at once as a mule.
The ears are nine and one-half inches long,--the girth not quite six
feet, stands above sixteen hands high. The hoofs are so long and
narrow that there is a difficulty in shoeing them, and the tail is
thin and scanty. He is a beast of indomitable energy and durability,
and highly prized by his owner.

Numerous similar cases are on record,[6] and it appears to have been
known among the Arabs for centuries, that a mare which has first borne
a mule, is ever after unfit to breed pure horses;[7] and the fact
seems now to be perfectly well understood in all the mule-breeding
States of the Union.

A pure Aberdeenshire heifer, the property of a farmer in Forgue, was
served with a pure Teeswater bull to which she had a first cross calf.
The following season the same cow was served with a pure Aberdeenshire
bull, the produce was in appearance a cross-bred calf, which at two
years old had long horns; the parents were both hornless.

A small flock of ewes, belonging to Dr. W. Wells in the island of
Grenada, were served by a ram procured for the purpose;--the ewes were
all white and woolly; the ram was quite different,--of a chocolate
col