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.
More Quotes from Asa Gray:
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
Increased powers of investigation- microscopical and chemical- might be expected to discover them. This expectation has not been fulfilled.
Asa Gray
It was implicitly supposed that every living thing was distinctively plant or animal; that there were real and profound differences between the two, if only they could be seized.
Asa Gray
Upon no one of these particular points has there been a completer change of view than upon the distinctness of the animal and vegetable kingdoms.
Asa Gray
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
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
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Based on Topics: Animals QuotesBased on Keywords: nitrogen, oxygen
It is double pleasure to deceive the deceiver.
Niccolo Machiavelli
Our plans miscarry because they have no aim. When a man does not know what harbor he is making for, no wind is the right wind.
Lucius Annaeus Seneca