The Old Style of Tenements, with Yards.

[Thompson Street, bird's eye view.]

It costs a Dallar a Month to sleep in the Sheds.

It costs a Dallar a Month to sleep in the Sheds.

Typical Tenement Fire escape, serving as an extension of the "flat" -- Allen Street.

Typical Tenement Fire escape, serving as an extension of the "flat" -- Allen Street.

Bone Alley.

Outlawed rear tenements from Astor Memorial School, destroyed in 1897 by Board of Health.

[68-70-72-74 Thompson St. Clotheslines.]

Outlawed rear tenements from Astor Memorial School, destroyed in 1897 by Board of Health.

Italian flat in South Fifth Avenue.

Italian flat in South Fifth Avenue.

Italian flat in South Fifth Ave.

Italian flat in South Fifth Avenue.

Italian flat in South Fifth Avenue.

Italian flat in South Fifth Avenue.

Children in "The Ship," destroyed by B. of Health in 1897, after the visit of Roosevelt & myself [Jacob A. Riis] there.

The Mott Street Barracks.

The Mott Street Barracks.

The Mott Street Barracks.