REPORT ON WATER SERVICE.

Revision of Manual

PAGE

483

486

Study of Progress of Regulations of Federal or State Health

Authorities Pertaining to Drinking Water Supplies....... 487

Effect of Local Deposits on Pollution of Surface and Shallow

Well Water Supplies..........

490

493

498

Pitting and Corrosion of Boiler Tubes and Sheets...

Specifications for Various Chemicals Used in Water Treatment.

Centrifugal Pumps for Railway Water Service.....

Specifications for Cast Iron Pipe and Special Castings......

University Work in Connection with Railway Water Supply....

508

514

527

REPORT ON UNIFORM GENERAL CONTRACT FORMS..... 529

Revision of Manual...................

534

Form of License for Wires, Pipes and Conduits and Drains on

Tentative Specifications for Cold-Drawn Steel Wire for Con-

crete Reinforcement

545

Abrams' Selective Concrete Strength Tests.

547

Joint Committee on Specifications for Concrete Pipe...

Comments on Report of Joint Committee on Concrete.

564

567

REPORT ON TRACK...

575

Revision of Manual.

577

Plans of Turnouts, Crossovers, Slip Switches and Crossings.... 579

Plans and Specifications for Track Tools......

581

Specifications and Unit Track Work Schedules for Contracting

Maintenance Work

599

Plans and Specifications for Switch Stands, Switch Lamps and

Switch Locks ....

611

Gages and Flangeways for Curved Crossings..

614

Tests of Tie Plates Subject to Brine Drippings..

617

Investigation on Reduction of Taper of Tread to 1 in 38 and on

Canting the Rail Inward......

619

Formula for Elongation of Rails in the Drop Test...

Bibliography and Discussion of Interior Fissures in Rails.......

REPORT ON ECONOMICS OF RAILWAY LABOR..

651

655

669

Plans and Methods for Obtaining Railway Labor....

Methods for Training and Educating Employees in Engineering

and Maintenance Work......

670

674

Method for Performing Maintenance of Way Work for the Pur-

pose of Establishing Units of Measure of Work Performed. 680

Best Method of Fireproofing Wooden Bridges and Trestles..... 722

REPORT ON ECONOMICS OF RAILWAY OPERATION......

Methods for Increasing the Traffic Capacity of a Railway......

Effect of Speed on the Cost of Operation...

727

729

746

Methods for Analyzing Costs...

748

The Economical Operation of Trains Against the Current of

Traffic on Multiple Track Railways......

750

Operation of One-Engine and Two-Engine Trains...

764

PAGE

WOOD PRESERVATION-Continued

Research Work on Marine Piling...

Preservative Treatment for Piles and Timber in Land Con-

struction

....

Methods for Storing Lumber and Piling....

MONOGRAPHS

Part 2

REPORT OF AMERICAN COMMITTEE ON ELECTROLYSIS.

THE FLAT DISK CENTER FOR TURNTABLES-By B. R.

Leffler, Bridge Engineer, New York Central Railroad, West of

Buffalo

963

977

979

1

177

185

COLONEL GEORGE HERBERT WEBB-A Memoir..

195

JOHN FINDLEY WALLACE-A Memoir.

CONSTITUTION