Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three. — Asa Gray Copy Share Image
I proceed with the proper subject of this discourse; namely, the further changes in scientific belief, which have occurred within my own recollection, even since the time when I first aspired to authorship, now forty- five years ago. — Asa Gray Copy Share Image
This substance, which is manifold in its forms and protean in its transformations, has, in its state of living matter, one physiological name which… — Asa Gray Copy Share Image
Is it philosophical, is it quite allowable, to assume without evidence from fossil plants that the family or any of the genera was once… — Asa Gray Copy Share Image
The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated to be distinctively either plant or animal, while, as… — Asa Gray Copy Share Image
It remains to consider what attitude thoughtful men and Christian believers should take respecting them, and how they stand related to beliefs of another… — Asa Gray Copy Share Image
“Botany is the name of the science of the vegetable kingdom in general; that is, of plants.” — Asa Gray Copy Share Image
Why is it not just as likely that there were as many small general nearly at first as now, and as great a disproportion… — Asa Gray Copy Share Image
I know some people who never have any difficulties to speak of. The moment I understood your premisses, I felt sure you had a… — Asa Gray Copy Share Image
It was implicitly supposed that every living thing was distinctively plant or animal; that there were real and profound differences between the two, if… — Asa Gray Copy Share Image
“This view, as a rounded whole and in all its essential elements, has very recently disappeared from science. It died a royal death with… — Asa Gray Copy Share Image
Faith in order, which is the basis of science, cannot reasonably be separated from faith in an Ordainer, which is the basis of religion. — Asa Gray Copy Share Image
Indeed upon much that may have to say, I expect rather the charitable judgment than the full assent of those whose approbation I could… — Asa Gray Copy Share Image
But it was soon ascertained that this quaternary matter of the animal body was chemically the same in the plant, was elaborated there, and… — Asa Gray Copy Share Image
![“This view, as a rounded whole and in all its essential elements, has very recently disappeared from science. It died a royal death with Agassiz. [It had formerly been held that there were no genetic connections among species.]” quote by Asa Gray](https://sms4smile.com/quotes/img-quotes/949/asa-gray-20258_agassiz_this-view-as-a-rounded-whole-and-in-all_1105778.jpg)
