Crossword-Solution: TRAJECTED 9 letters, 1 clue 🏆 scrabble score: 19

Then I placed another prism behind this second board, so that the light trajected through both the boards might pass through that also, and be again refracted before it arrived at the wall.

Let this trajected part of that Light fall again upon the middle of the second Board _de_, and there paint such an oblong coloured Image of the Sun as was described in the third Experiment.

But this Light being trajected only through the parallel Superficies of the two Prisms, if it suffer'd any change by the Refraction of one Superficies it lost that Impression by the contrary Refraction of the other Superficies, and so being restor'd to its pristine Constitution, became of the same Nature and Condition as at first before its Incidence on those Prisms; and therefore, before its Incidence, was as much compounded of Rays differently refrangible, as afterwards.

Then immediately after the Lens I placed a Prism, by which the trajected Light might be refracted either upwards or sideways, and thereby the round Image, which the Lens alone did cast upon the Paper might be drawn out into a long one with Parallel Sides, as in the third Experiment.

Then let the Light trajected through them fall upon the Paper MN, distant about 8 or 12 Inches from the Prisms.