52개의 결과 중 6 - 10개
Hence I look at individual differences, though of small interest to the systematist,
as of high importance for us, as being the first step towards such slight varieties
as are barely thought worth recording in works on natural history. And I look at ...
From these remarks it will be seen that I look at the term species, as one
arbitrarily given for the sake of convenience to a set of individuals closely
resembling each other, and that it does not essentially differ from the term variety,
which is given ...
On the other hand, if we look at each species as a special act of creation, there is
no apparent reason why more varieties should occur in a group having many
species, than in one having few. To test the truth of this anticipation I have ...
wedges packed close together and driven inwards by incessant blows,
sometimes one wedge being struck, and then another with greater force. What
checks the natural tendency of each species to increase in number is most
obscure. Look at ...
When we look at the plants and bushes clothing an entangled bank, we are
tempted to attribute their proportional numbers and kinds to what we call chance.
But how false a view is this ! Every one has heard that when an American forest is
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LibraryThing Review사용자 리뷰 - rylltraka - LibraryThing
The texts themselves are priceless, but the translations in this volume are seriously dated and often obscure the meaning of the Greek - especially worthy of disdain are the Aristophanes translations ... 전체 리뷰 읽기
LibraryThing Review사용자 리뷰 - JohnnieBurgessJr - LibraryThing
Great collection of works. 전체 리뷰 읽기