Morton, Dr., origin of the dog, i. 16;
hybrid of zebra and mare, ii. [42].
Morus alba, i. 334.
Moscow, rabbits of, i. 106, 120;
effects of cold on pear-trees at, ii. [307].
Mosses, sterility in, ii. [171];
retrogressive metamorphosis in, ii. [361].
Moss-rose, probable origin of, from Rosa centifolia, i. 379;
Provence roses produced from seeds of, i. 380.
Mosto, Cada, on the introduction of rabbits into Porto Santo, i. 113.