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1874

Blindness US.

Statistical Atlas

Chart showing the distribution by age an …

1874

Deaf mutism US.

Statistical Atlas

Chart showing the distribution by age an …

1874

Insanity US.

Statistical Atlas

Chart showing the distribution by age an …

1874

Idiocy US.

Statistical Atlas

Chart showing the distribution by age an …

1874

Blind 1870.

Statistical Atlas

Chart showing the aggregate number of bl …

1874

Deaf mutes 1870.

Statistical Atlas

Chart showing the aggregate number of de …

1874

Insane 1870.

Statistical Atlas

Chart showing the aggregate number of in …

1874

Idiots 1870.

Statistical Atlas

Chart showing the aggregate number of id …