Chap. CCVIII.—Of the Interposition of transparent Bodies between the Eye and the Object.
The greater the transparent interposition is between the eye and the object, the more the colour of that object will participate of, or be changed into that of the transparent medium[1]. When an opake body is situated between the eye and the luminary, so that the central line of the one passes also through the centre of the other, that object will be entirely deprived of light.
- ↑ He means here to say, that in proportion as the body interposed between the eye and the object is more or less transparent, the greater or less quantity of the colour of the body interposed will be communicated to the object.