difficulty of selection in, ii. [234], [236];
length of intestines in, ii. [302];
white with blue eyes, deafness of, ii. [329];
with tufted ears, ii. [350].
Cataract, hereditary, ii. [9], [79].
Caterpillars, effect of changed food on, ii. [280].
Catlin, G., colour of feral horses in North America, i. 61.
Cattle, European, their probable origin from three original species, i. 79-82;
humped, or Zebus, i. 79-80;
intercrossing of, i. 83, 91-93;