BLINDNESS AND THE BLIND.

BLINDNESS AND THE BLIND:

OR,

A TREATISE ON THE

SCIENCE OF TYPHLOLOGY.

380952

BY

W. HANKS LEVY, F.R.G.S.,

DIRECTOR OF THE ASSOCIATION FOR PROMOTING THE GENERAL WELFARE
OF THE BLIND.

LONDON:

CHAPMAN AND HALL, 193, PICCADILLY, W.

1872.
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