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SPECTACLES, SSc.--The subscribers, Nanufac-
~ turcrs Of Mathematical, Optical, and Philosophi
cal Instruments Cat the solicitation Of their friends
have added to their establishment The article Of Spec
tacles, in every variety of FORMS where glasses OF
the best quality, and correctly ground on optical
principles may be had to suit the sight Of (neary) all
persons gold frames made to ORDER Of any pattern,
glasses fitted to old frames. and all work In the line
done in tie best manner; where may be had great
variety of Mathematical Drawing instruments from
81 to $780, Engineers and Surveyors instruments of
superior quality Pocket and other Telescopes supe-
rior Thermometers, in mahogany cases, for halls or
parlors, Barometers, &c. Shortly will be published,
in pamphlet form, with plates an Essay on the Human
Eye, showing its defects, and explaining the appca-
ton Of Optical Glasses, to its assistance, &c.


PATTEN & SON


South side Pennsylvania avenue,


nov 6.-lm between 10th and | lth sts