1 Of Species visibleOf Species visible1 Of VisionOf Colours.The Newton Project Knowledge Graph2020-10-08Journal1 Of Vision2 Of Vision1 Of Species visible
There is required some permanency in the object to perfect vison thus a coale whirled round is not like a coale but fiery circle or who can se a bullet pass by him. yet if the eye keep motion with the thing moved it sees it right One eye shutting or being perst the pupill of the other open both the eyes being opened together, dilate, & contract, & dilate. Vppon passion these spirits ebb & flow. Dymnesse may come from the deficiency of these spirits, & the Optick nerve obstructed
Rays from the same point in an object strikeing upon both the eyes do make the object seeme two as when an aye is deprest viz: then theire two axes respect not the same point, in that object. Things of the darker colour are easliest burned i.e. have loosest parts. A mans Eye struck sparkeleth.
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