DEAF-MUTEISM AT THE LAST FOUR CENSUSES.

In 1861 there was 1 deaf-mute in every	9,005 persons
In 1871 there was 1 deaf-mute in every	3621 persons
In 1881 there was 1 deaf-mute in every	3005 persons
In 1891 there was 1 deaf-mute in every	3133 persons