 | Sir Norman Lockyer - 1890 - 928 lapas
...glucose or lactose and alkali, &c., form invisible images which can be developed in precisely the same way as the photographic image. All this looks like...display which the subject affords. My aim has been to summarize the position in which we find ourselves with respect to the invisible image after fifty years'... | |
 | Sir Norman Lockyer - 1890 - 812 lapas
...glucose or lactose and alkali, &c., form invisible images which can be developed in precisely the same way as the photographic image. All this looks like...display which the subject affords. My aim has been to summarize the position in which we find ourselves with respect to the invisible image after fifty years'... | |
 | Sir Norman Lockyer - 1890 - 708 lapas
...photographic image. All this looks like chemical change, and not physical modification pure and simple. I have in this discourse stoically resisted the tempting...display which the subject affords. My aim has been to summarize the position in which we find ourselves with respect to the invisible image after fifty years'... | |
 | 1891 - 1226 lapas
...photographic image. All this looks like chemical change, and not physical modification pure and simple. I have in this discourse stoically resisted the tempting...display which the subject affords. My aim has been to summarize the position in which we find ourselves with respect to the invisible image after fifty years'... | |
 | Smithsonian Institution. Board of Regents - 1891 - 898 lapas
...tempting opportunities for pictorial display which the subject affords. My aim has been to summarize the position in which we find ourselves with respect...image after fifty years' practice of the art. This image is, I venture to think, the property of the chemist, and by him must the scientific foundation... | |
 | Sir Norman Lockyer - 1890 - 702 lapas
...glucose or lactose and alkali, &c., form invisible images which can be developed in precisely the same way as the photographic image. All this looks like...display which the subject affords. My aim has been to summarize the position in which we find ourselves with respect to the invisible image after fifty years'... | |
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All this looks like chemical change, and not physical modification pure and simple. 1 have in this discourse stoically resisted the tempting opportunities for pictorial display which the subject affords. My aim has been to summarize the position in which... 