The two principal conditions on which climatal causes generally may be said to rest, are latitude and altitude.
All these climatal conditions exerted, no doubt, a modifying influence upon the character of the inhabitants.
Now such cases seem to me very striking, as showing how little relation some variations have to climatal conditions.
Climatal causes generally (whether dependent on latitude or upon altitude).
These animals were thoroughly successful in meeting the climatal conditions of the region.
