Old Barney in Cat Alley.

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.

Street Arabs in sleeping quarters.

Street Arabs in sleeping quarters.

Street Arabs in sleeping quarters.

[Jacob A. Riis.]

"I Scrubs." Katie , who keeps house in West Forty-ninth Street.

"Washing Up" in the Newsboys' lodging house.

"Washing Up" in the Newsboys' lodging house.

[Jacob A. Riis.]

Blind Beggar.

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

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

Shelter Island; Coming through the Fields.

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

Under the Dump at West 47th Street.

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

Shelter Island; Coming through the Fields.

Waiting to be let into playground.