Lyell and other authors have ably treated this subject. 查尔斯·达尔文.物种起源.
It is to Lyell's disciple, Charles Darwin, however, that we turn for our main illustration of the value of travel for comprehensive scientific gen eralization. 李贝.西洋科学史.
Lyell has made similar observations on some of the later tertiary formations. 查尔斯·达尔文.物种起源.
Lyell and Dr. Dawson in the carboniferous strata of North America; but now land-shells have been found in the lias. 查尔斯·达尔文.物种起源.
Lyell that in November, 1844, swarms of locusts visited the island of Madeira. 查尔斯·达尔文.物种起源.
Lyell asks, and assigns certain reasons in answer, why have not seals and bats given birth on such islands to forms fitted to live on the land? 查尔斯·达尔文.物种起源.
No disciple of Lyell could fail to be convinced of the immeasurabl e lapse of time required for the formation of the earth's crust. 李贝.西洋科学史.
Lyell has shown, is the relative position of the land and water. 查尔斯·达尔文.物种起源.
The elder De Candolle and Lyell have largely and philosophically shown that all organic beings are exposed to severe competition. 查尔斯·达尔文.物种起源.