The Division Street Park site -- as it was when tenements were cleared away, taken 1898.

Bone Alley Park site -- when the tenements were torn down, one of the small park sites I [Jacob A. Riis] located, taken 1898.

Bone Alley Park site -- when the tenements were torn down, one of the small park sites I [Jacob A. Riis] located, taken 1898.

Old house in Cherry Street, "The Cradle of the Tenement".

Old house in Cherry Street, "The Cradle of the Tenement".

Baby in slum tenement, dark stairs--it's playground.

Baby in slum tenement, dark stairs--it's playground.

Lodgers in a crowded Bayard Street tenement - "Five cents a spot."

Lodgers in a crowded Bayard Street tenement - "Five cents a spot."

Lodgers in a crowded Bayard Street tenement - "Five cents a spot."

Lodgers in a crowded Bayard Street tenement - "Five cents a spot."

Yard in Jersey Street Tenement.

Lodgers in a crowded Bayard Street tenement - "Five cents a spot."

The Survival of the Unfittest.

The Survival of the Unfittest.

The Survival of the Unfittest.

Bohemian cigar makers at work in their tenement.

Cat Alley, when the rear tenements were torn down in the Elm Street widening (1898?).

Bohemian cigar makers at work in their tenement.

Bohemian cigar makers at work in their tenement.