Climate, effects of, in checking increase of beings, [68].
——, adaptation of, to organisms, [139].
Cobites, intestine of, [190].
Cockroach, [76].
Collections, palæontological, poor, [288].
Colour, influenced by climate, [132].
——, in relation to attacks by flies, [198].
Columba livia, parent of domestic pigeons, [23].
Colymbetes, [386].
Compensation of growth, [147].