 | 1768 - 250 Seiten
...Tinge at one* End fhould be the flighted poffible, and at the other End fo dark that you cannot fee the Candle through it. By this Contrivance applied between your Eye and the Telc~ fcope, you will have the Advantage, not only of feeing the Sun's Light white, according to its... | |
 | 1818 - 518 Seiten
...the smoked faces being opposed to each other, and the deepest tinges of both placed together at the same end. Tie the glasses firmly together with waxen...you will have the advantage not only of seeing the sun's light white, according to its natural colour, and his image more distinct than through common... | |
 | 1821 - 438 Seiten
...the smoked faces being opposed to each other, and the deepest tinges of both placed together at the same end. Tie the glasses firmly together with waxen...ready for use : the tinge at one end should be the lightest possible, and at the other end so dark, that you cannot see the candle through it. By this... | |
 | 1820 - 422 Seiten
...the smoked faces being opposed to each other, and the deepest tinges of both placed together at the same end. Tie the glasses firmly together with waxen...end so dark that you cannot see the candle through. By this contrivance, applied between your eye and the Sun, you will have the advantage not only of... | |
 | 1820 - 612 Seiten
...tint smoked faces being opposed to each other, and the deepest tinges of bolh placed together at the same end. Tie the glasses firmly together with waxen thread, and they are ready for use. Thetingeat one end should be the slightest possible, aud at I In- other cud 10 durk that you cuixuot... | |
 | William Kitchiner - 1825 - 480 Seiten
...the smoked faces being opposed to each other, and the deepest tinges of both placed together at the same end. Tie the glasses firmly together with waxen...end so dark- that you cannot see the candle through. By this contrivance, applied between your eye and the sun, you will have the advantage not only of... | |
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... gradually in blackness from one end to the other. Smoke the other glass in like manner, and apply the two glasses, one against the other, only separated by a rectangular border, cut of brass or card paper, the smoked faces being opposed to each other,... 