| Sir David Brewster, Robert Jameson - Science - 1822 - 458 pages
...an optical origin ,- and he proceeds in the conclusion of his paper, (which, for obvious reasons *, we have omitted,) to fortify this conclusion by the...perception of different colours, we have no evidence ; but it seems quite sufficient for the explanation of the leading facts, to suppose that the retina... | |
| Sir David Brewster, Robert Jameson - Science - 1822 - 456 pages
...have an imperfect perception of colours, Dr Thomas Young has remarked, (in opposition to Mr Dal ton's opinion, that the vitreous humour of his own eye is...perception of different colours, we have no evidence ; but it seems quite sufficient for the explanation of the leading facts, to suppose that the retina... | |
| 1824 - 496 pages
...green. A simple experiment does away with DALTON'S theory. Dr THOMAS YOUNG, on the other hand, says, " It is " much more simple to suppose, the absence or...those fibres of the retina which are calculated to per" ceive red." Now, had such fibres of the retina existed, or admitted of discrimination from other... | |
| Perry Fairfax Nursey - Industrial arts - 1826 - 476 pages
...examination of tiie eye, we cannot hold it as an explanation of the phenomena. Dr. Young thinks it much more simple to suppose the absence or paralysis...of the retina which are, calculated to perceive red ; while Dr. Brewster conceives that the eye is, in spectrum, just as the ear of certain persons has... | |
| Science - 1826 - 412 pages
...minute examination of the eye, we cannot hold it as an explanation of the phenomena. Dr Young thinks it much more simple to suppose the absence or paralysis...of the retina which are calculated to perceive red ; while Dr Brewstcr conceives that the eye is, in these cases, insensible to the colours at the one... | |
| Technology - 1826 - 478 pages
...minute examination of the eye, we cannot hold it as an explanation of the phenomena. Dr. Young thinks it much more simple to suppose the absence or paralysis...of the retina which are calculated to perceive red ; while Dr. Brewster conceives that the eye is, in spectrum, just as the ear of certain persons has... | |
| Industrial arts - 1826 - 490 pages
...minute examination of the eye, we cannot hold it as an explanation of the phenomena. Dr. Young thinks it much more simple to suppose the absence or paralysis...of the retina which are calculated to perceive red ; while Dr. Brewster conceives that the eye is, in spectrum, just as the ear of certain persons has... | |
| Industrial arts - 1826 - 488 pages
...minute examination of the eye, we cannot hold it i an explanation of the phenomena. Dr. Young thinks it much more simple to suppose the absence or paralysis of those fibres of the retina ifhich are calculated to perceive red ; while Dr. Brewster conceives that the eye is, in these cases,... | |
| Phrenology - 1832 - 700 pages
...Dr Thomas Young rejects Dalton's theory, and thinks it " much more simple to suppose the absence of paralysis of those fibres of the retina, which are calculated to perceive red." There is no evidence of the existence of such fibres in the retina, and • Phrenology, p. 276. f Phrenological... | |
| Medicine - 1839 - 542 pages
...of the eye, and does not even explain all the phenomena. Dr. Young thinks it more simple to suppose absence or paralysis of those fibres of the retina which are calculated to perceive red; but there is no evidence of there existing in the retina fibres suited to the perception of the different... | |
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