LECTURES AT HOME.

DISCOVERY AND MANUFACTURE OF GLASS:

LENSES AND MIRRORS:

THE STRUCTURE OF THE EYE..

BY MARIA HACK.

* Why should not children be instructed in those wonderful works of
Nature and Art, which we daily use without ever reflecting how they are
produced ?"-ROLLIN.

LONDON:
PRINTED FOR DARTON AND HARVEY,

GRACECHURCH-STREET,

1834.

135.