Journal of Natural Philosophy, Chemistry and the Arts . beginpens if the ray to reflect again the usual proportion of incidental light,d*^^ ^^\r ^ the intermediate positions, the be more orS. But if E. or less complete, accordingly as the reflected ray approaches moreW. the second ^.^. j^^^ ^j^^ j^^^^ ^f ,1^^ meridian,glass reflects ^ no light at all. Under these circumstances, where the reflected ray comports itself so differently, it nevertheless constantly preserves the sameinclination wiih regard to the incidental ray. We, therefore, in this instance see, that a r

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Journal of Natural Philosophy, Chemistry and the Arts . beginpens if the ray to reflect again the usual proportion of incidental light,d*^^ ^^\r ^ the intermediate positions, the be more orS. But if E. or less complete, accordingly as the reflected ray approaches moreW. the second ^.^. j^^^ ^j^^ j^^^^ ^f ,1^^ meridian,glass reflects ^ no light at all. Under these circumstances, where the reflected ray comports itself so differently, it nevertheless constantly preserves the sameinclination wiih regard to the incidental ray. We, therefore, in this instance see, that a rav of lightfalling on a transparent body, acts in the same manner when itsreflecting face is turned towards the north orthe scuth, and inadiffertnt manner when this face is turned towards the east orthe west; although these faces still continue to forai, with thevertical direction of this ray, an angle of 35° 25. * See alsoPhllos, Journal, XXX, 95, 161. 192. Thest FMos JoicrnalJ^^P3 ._ /f,JJ^t^/€^&/i (yy/^/cJy^U^/j oAy/-i^/^.J. ijimu.

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Keywords: ., bookcentury1800, bookdecade1810, bookpublisherlondon, bookyear181