The above classification by Warming, although it was without doubt the best ecological classification which had, at the time, been put forward, has not escaped criticism.
The seven powers which create and rule the world are without doubt the seven planetary deities of the later Babylonian religion.
Though the languages of these races are very different they cannot be regarded as physically distinct, and they are both without doubt branches of the Melanochroi, modified by admixture with the neighbouring races, the Mongols, the Australoids and the Xanthochroi.
Cultivated pears, whose number is enormous, are without doubt derived from one or two wild species widely distributed throughout Europe and western Asia, and sometimes forming part of the natural vegetation of the forests.
If they could, by some happy chance, have been left for discovery by modern economists, they would without doubt have received different treatment, to the great advantage of economic science.