The Encyclopædia Britannica, Vol. 7: A Dictionary of Arts, Sciences, and General Literature (Classic Reprint)

Bücher

Angebote / Angebote:

Excerpt from The Encyclopædia Britannica, Vol. 7: A Dictionary of Arts, Sciences, and General LiteratureFrom this it appears that in 86 families with one parent a congenital deaf mute there were 218 children, of whom 21 were deaf and dumb, or about one-tenth of the whole. In the 24 families with both parents congenital deaf mutes there were 57 children, of whom 17 were deaf and dumb, or about one-third of the whola The pro rtion of deaf mute children of parents both congeni y dent is thus more than three times greater than of parents only one of whom is congenitally deaf.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.