 | Paul Feyerabend - 1985 - 272 pages
...circular' (Cohen, 48). Even in the later Opticks he still writes that 'at its sides [the spectrum] was bounded pretty distinctly, but on its ends very...the light there decaying and vanishing by degrees' (29). His description of what is seen, including the drawings, is therefore unexceptionable. But if... | |
 | 368 pages
...was oblong and not oval, but terminated with two rectilinear and parallel sides, and two semicircular ends. On its sides it was bounded pretty distinctly,...image answered to the sun's diameter and was about 2| inches including the penumbra. For the image was 18£ feet from the prism, and at this distance... | |
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... at the opposite wall of the chamber, and observed the figure and dimensions of the solar image formed on the paper by that light. This image was oblong and not oval, but terminated with two rectilinear and parallel sides, and two semicircular ends.... 
