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Asa Gray Quotes


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Quotes by Asa Gray

Showing 11-20 of 22 Quotes by Asa Gray

The former conviction that these two kingdoms were wholly different in structure, in function, and in kind of life, was not seriously disturbed by the difficulties which the naturalist encountered when he undertook to define them.

~Asa Gray

Topics: Conviction Define Different Difficulties Disturbed Encountered Former Function He Kind Kingdoms Life Naturalist Seriously Structure Them Two Were Which Wholly

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It was always understood that plants and animals, though completely contrasted in their higher representatives, approached each other very closely in their lower and simpler forms. But they were believed not to blend.

~Asa Gray

Topics: Always Animals Believed Blend Closely Each Forms Higher Lower Other Plants Plants And Animals Representatives Simpler Though Understood Very Were

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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

Topics: Animal Between Could Differences Every Implicitly Living Living Thing Only Plant Profound Real Seized Supposed Thing Two Were

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The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated to be distinctively either plant or animal, while, as respects ordinary plants and animals, the difficulty of laying down a definition has become far greater than ever before.

~Asa Gray

Topics: Animal Animals Become Before Best Definition Difficulty Down Either Ever Far Forms Greater Laying Now Opinion Ordinary Plant Plants Plants And Animals Respects Sufficiently Than Which While

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

~Asa Gray

Topics: Above Animal Below Join Lines Loop Short Vegetable Widely

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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

Topics: Added Animals Being Carbon Chemical Composed Different Elements Four Hydrogen Many Materials Other Oxygen Plants Plants And Animals Substance Taught Three Were Years Years Ago

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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

Topics: Animal Body Matter Only Plant Same Soon

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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

Topics: Animal Did Found Life Living Manifested Next Organisms Part Plant Same Vegetable Well Which Work

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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

Topics: Become Familiar Forms Living Matter Name Physiological State Substance Which

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We have spoken of beings so low in the scale that the individuals throughout their whole existence are not sufficiently specialized to be distinctively plant or animal: yet these are definite life in simpler shape.

~Asa Gray

Topics: Animal Beings Definite Existence Individuals Life Low Plant Scale Shape Simpler Specialized Spoken Sufficiently Throughout Whole

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Biography

Nationality: American

Type: Scientist

Born: November 18th, 1810

Died: January 30th, 1888

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