* These statistics prepared by the Bureau of Railway Economics for the Annual Report of the Chamber are dated January 1, 1911. The cost of construction in the State of New York it is impossible to give as the Public Service Commission does not differentiate the items on the balance sheets by state lines.

DEPARTMENT OF EDUCATION-CITY OF NEW YORK.

ENROLLMENT, REGISTER AND Attendance oF PUPILS FOR YEAR ENDING JULY 31, 1911.

SUPERVISING AND TEACHING STAFF FOR THE YEAR ENDING JULY 31, 1911.

Superintendents..

Directors, Assistant Directors and Inspectors of Special Branches..

35

21

479

19

427

431

3

106

1,475

14,359

1

16

823

18.195

Evening Elementary School Teachers.

Vacation School Teachers...

516

1,360

574

838

213

Total Bond Issues for School Sites and Buildings $12,132,287 39

WATER SUPPLY SYSTEM OF THE CITY OF NEW YORK IN 1911.

Sources of Supply

Manhattan and

[From official sources.]

Croton River Watershed.

Bronx Boroughs

Bronx and Byram Watershed.

Driven Wells on south shore of Long Island.

Brooklyn Reservoirs and Ponds.

Queens Driven Wells.

STATISTICS OF THE NEW YORK CITY POLICE, 1911.

Includes $700,000 in 1911 appropriated in budget to meet deficiency in Police Pension Fund, but does not include $124,750 appropriated to Departments of Health and Tenement House for police detailed to said departments.

THE SEWERS OF NEW YORK-1911.

[From information supplied by the Comptroller of the city.]

PAVEMENT MILEAGE IN THE CITY OF NEW YORK, DECEMBER 31, 1911.

HEALTH AND VITAL STATISTICS OF NEW YORK CITY IN 1911.

Corrected death rate of the boroughs means that the death rate of each borough is corrected by the exclusion of deaths of residents of other boroughs occurring within its limits, and the inclusion of deaths of its residents occuring in other boroughs.

PARK SYSTEM OF NEW YORK.

[Statement for 1910, prepared from official sources.]