Pittsburgh, Pa......

See Page 116

Goodyear's I. R. G. Manufacturing Co........ New York.

252

Weight 100 ft.

IRON TELEGRAPH WIRE.

TABLE OF LENGTH, SIZE, WEIGHT, STRENGTH, ETC.

(Charles T. Chester.)

0,340

29.44

* Those marked with star are standard sizes for telegraph use.

SUPERFINE PAINTS AND COLORS,

FOR

CAR PAINTING.

These Colors are Guaranteed Perfectly Pure, of a fineness that cannot be equalled outside of us.

GILBERT BUSH & CO., Troy, N. Y.

WASON CAR COMPANY, Springfield, Mass.
GRANT LOCOMOTIVE WORKS, Paterson, N. Ja
BALTIMORE & OHIO RAILROAD COMPANY.

WM. MULLINS, Esq., Purchasing Agent,

Pennsylvania Railroad, Pittsburgh, Pa.

MILWAUKIE & ST. PAUL RAILROAD COMPANY,
and many others.

SEND FOR SAMPLE BOOK OF COLORS

то

JOHN W. MASURY & SON,

MANUFACTURERS OF

PURE WHITE LEAD,

ZINC PAINTS,

AND

SUPERFINE COLORS FOR COACH AND CAR WORK.

SPECIALTY IN PURE COLORS.

Office, No. 111 Fulton Street, New York.

WROUGHT IRON WELDED TUBES, EXTRA STRONG.
Table of Standard Sizes.—(Morris, Tasker & Co.)

134

Actual Inside Diam-
eter, Extra Strong.

.205

To convert degrees, Centigrade or Reaumur, into degrees Fahrenheit.
Let F No. of degrees Fahrenheit.

Freezing point, or 32° Fah. = Zero in Cent., or Reaumur.
Boiling point, or 212° Fah, = 100° Cent., or 80° Reaumur.

Actual Inside Diam

eter, Double Extra Strong.

No 27 South Eighth Street, cor. Jayne,

(Entrance on Jayne Street.)

PHILADELPHIA.

We call the attention of Engineers to our Patented Improvement on Telescopes.

G. & H. BARNETT,

39, 41 & 43 RICHMOND ST., PHILADELPHIA.

TELEGRAPH MAGNET AND OFFICE WIRES.

TABLE SHOWING THE NUMBER OF FEET BARE COPPER WIRE TO THE POUND.

The following are the conducting powers of the several Coppers, 100 being the standard for chemically pure: