920 THE AMERICAN NATURALIST.  [VOL. XXXIII. 
of evidence based upon anecdotes and traditions of obscure 
origin, that have made so many of the communications incon- 
clusive and unsatisfactory. Of an entirely different nature are 
the efforts of Professor J. C. Ewart of the University of Edin- 
burgh, who has lately published some of the results of his 
«‘Penycuik Experiments”; but although his work has received the 
well-merited attention of the British journals, American publica- 
tions have been almost shamefully indifferent to its importance. 
Professor Ewart began his experiments in 1895, when he 
secured three male Burchell’s zebras. Two of these died, 
but the third became thoroughly acclimated. This zebra 
was mated to Mulatto, a black West Highland pony, and the 
hybrid colt Romulus, born in August, 1896, was even more 
profusely striped than the sire, which in its figure and general 
behavior it strongly favored. Now, following Lord Morton’s 
experiment, Mulatto was sired by an Arabian horse, and, lo! 
and behold! like Lord Morton’s colt, Mulatto’s foal presented a 
number of stripes, although these were indistinct and visible 
only in certain lights. A third foal, born to Mulatto in May 
of the present year by a West Highland pony, Loch Corie, 
also showed indistinct markings. 
It would thus appear at first sight that Mulatto’s second and 
third foals lend support to the belief in telegony, but the 
Scotch professor did not stop here. Soon after the birth of 
Mulatto’s third foal, two West Highland mares, similar to her, 
but neither of which had ever seen a zebra, had colts by Loch 
Corie, both of which were striped. It is thus seen that striped 
colts may be born to full-blooded parents without the “ infec- 
tion ” of a zebra sire, and we are practically forced to give up 
our interest in the offspring of Lord Morton’s mare. 
Further experiments of Professor Ewart are as follows: A 
Shetland mare, mated to a black Shetland pony, had as her 
first foal a colt distinctly striped. Mated to the zebra, her 
second foal was the most zebra-like of all of Professor Ewart’s 
hybrids ; but when again mated, to a Welsh pony, her third foal, 
born after she had had an opportunity to become infected by 
the zebra or its hybrid foal, did not begin to have the conspicu- 
ous zebra-like markings of the first foal. 
