Buffalo, Miami, and Tampa, Fla., for physical tests of
cement, concrete, sand, stone, metals of all kinds, wood, materials
 used in highway construction, building materials and
for boiler tests, power plant tests and other engineering
problems.
The present officers of the Pittsburgh Testing Laboratory
 are: George T. Ladd, chairman of the board; James
Milliken, president; F. V. Green, vice president; F. O. Gardaer,
 secretary-treasurer, and A. R. Ellis, general manager.
The directors include George T. Ladd, James Milliken,
D. Frank Crawford, C. H. Curry, George H. Clapp, F. F.
Brooks. A. R. Ellis. and John C. Slack.

PITTSBURGH TRANSFORMER COMPANY

The Pittsburgh Transformer Company is a Pennsylvania
 corporation and a peculiarly Pittsburgh institution
throughout. Its plants and head offices are in Pittsburgh,
owned in Pittsburgh, and all the employees are native Pittsburghers.
 All officers are Pittsburghers. Over ninety per
cent of the raw materials used are manufactured in Pittsyurgh.

This company’s business in 1901 was $20,000 a year.
The business today occupies five complete city blocks, covered
 with the most modern factories and equipped with the
most modern and efficient machinery for the manufacture
of all parts of transformers. This company is the only
company in the world that manufactures all its parts, except
accessories. No other company manufactures all its electrical
 parts and also all of its tanks, radiators and fabricated
steel, which Pittsburgh Transformer Company does in its
rarious North Side plants.
The gross sales of the Company have grown in twentyfive
 years from $20,000 per annum to $6,000,000 per annum,
and the company now is the largest independent manufacturer
 of transformers in the United States, with a total numher
 of employees of over six hundred.
An interesting point here may be noted in reference to
wages paid by Pittsburgh Transformer Companv. The