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 agoaspireauthorship share on social
I take it for granted that you do not wish to hear an echo from the pulpit nor from the theological class-room. Asa Gray classechogrant Change image and share on social
Next it was found that it was physiologically and structurally the same in the plant, that it was the living part of the plant, that which manifested the life and did the work in vegetable as well as in animal organisms. Asa Gray animalfindlife share on social
Indeed upon much that may have to say, I expect rather the charitable judgment than the full assent of those whose approbation I could most wish to win. Asa Gray approbationassentcharitable Change image and share on social
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. Asa Gray acceptdisjoinexplain share on social
This substance, which is manifold in its forms and protean in its transformations, has, in its state of living matter, one physiological name which has become familiar, that of protoplasm. Asa Gray familiarformlive Change image and share on social
But it was soon ascertained that this quaternary matter of the animal body was chemically the same in the plant, was elaborated there, and only appropriated by the animal. Asa Gray animalappropriateascertain Change image and share on social
Is it philosophical, is it quite allowable, to assume without evidence from fossil plants that the family or any of the genera was once larger and wide spread? and occupied a continuous area? Asa Gray allowableareaassume Change image and share on social
There is a class, moreover, by whom all these scientific theories, and more are held as ascertained facts, and as the basis of philosophical inferences which strike at the root of theistic beliefs. Asa Gray ascertainbasisbelief Change image and share on social
It remains to consider what attitude thoughtful men and Christian believers should take respecting them, and how they stand related to beliefs of another order. Asa Gray attitudebeliefbeliever Change image and share on social