I accept extinction as best explaining disjoined species. I see that the same cause must have reduced many species of great range to small, and that it may have reduced large genera to so small, and of families.

Quote by Asa Gray

Topics: Asa Gray Quotes

Next it was found that it was physiologically and structurally the same in the plant,...

Next it was found that it was physiologically and structurally the same in the plant,...

In short, the animal and vegetable lines, diverging widely above, join below in a loop.

In short, the animal and vegetable lines, diverging widely above, join below in a loop.

This substance, which is manifold in its forms and protean in its transformations, has, in...

This substance, which is manifold in its forms and protean in its transformations, has, in...

We have spoken of beings so low in the scale that the individuals throughout their...

We have spoken of beings so low in the scale that the individuals throughout their...

Many years ago it was taught that plants and animals were composed of different materials:...

Many years ago it was taught that plants and animals were composed of different materials:...

Why is it not just as likely that there were as many small general nearly...

Why is it not just as likely that there were as many small general nearly...

The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated...

The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated...

I take it for granted that you do not wish to hear an echo from...

I take it for granted that you do not wish to hear an echo from...

It was implicitly supposed that every living thing was distinctively plant or animal; that there...

It was implicitly supposed that every living thing was distinctively plant or animal; that there...

Indeed upon much that may have to say, I expect rather the charitable judgment than...

Indeed upon much that may have to say, I expect rather the charitable judgment than...

There is a class, moreover, by whom all these scientific theories, and more are held...

There is a class, moreover, by whom all these scientific theories, and more are held...

It was always understood that plants and animals, though completely contrasted in their higher representatives,...

It was always understood that plants and animals, though completely contrasted in their higher representatives,...

I proceed with the proper subject of this discourse; namely, the further changes in scientific...

I proceed with the proper subject of this discourse; namely, the further changes in scientific...

The former conviction that these two kingdoms were wholly different in structure, in function, and...

The former conviction that these two kingdoms were wholly different in structure, in function, and...

We may take it to be the accepted idea that the Mosaic books were not...

We may take it to be the accepted idea that the Mosaic books were not...

It remains to consider what attitude thoughtful men and Christian believers should take respecting them,...

It remains to consider what attitude thoughtful men and Christian believers should take respecting them,...

Is it philosophical, is it quite allowable, to assume without evidence from fossil plants that...

Is it philosophical, is it quite allowable, to assume without evidence from fossil plants that...

But it was soon ascertained that this quaternary matter of the animal body was chemically...

But it was soon ascertained that this quaternary matter of the animal body was chemically...

I am sufficiently convinced already that the members of a profession know their own calling...

I am sufficiently convinced already that the members of a profession know their own calling...

Your candor is worth everything to your cause. It is refreshing to find a person...

Your candor is worth everything to your cause. It is refreshing to find a person...