E. KAYLOR, President. R. H. LEWIS, Treasurer. H. F. LYNCH, Secretary.

PITTSBURGH BOLT CO.

MANUE ACTUREIRS OF

Merchant Bar Iron,

FISHHM'Sill||||W

Pilot Hit Hämmtli Bill; all Nils.

WashFRs, Wood SGREws,
R. R. Frogs AND SWITCHEs,
GAR AND BRIDGE BOLTS,

Head Linings.

Vose, Dinsmore & Co..................................... New York..................... See Page 60
Heating Apparatus
A. Carr........................................................New York..................... See Page 244
Hinge Nails.
D. Brewer & Co.............................................Philadelphia, Pa............ See Page 246
- . . Hinges. - -
Lewis Oliver & Phillips; H. B. Newhall, Ag't...New York..................... See Page 166
Pratt & Co.... ............................................... Buffalo, N. Y................... {{ 132
Providence Tool Co.; H. B. Newhall, Agent.....New York...................... “ 166
Wm. Green & Co.......................................... Wilmington, Del............ & 4 248
Hoes.
Hermann Boker & Co.................................... New York............ See Pages 152, 154
Hoisting Crappie.
Hermann Boker & Co.................................... New York............ See Pages 152, 154
Holsting Machines.
J. S. Mundy................................................. Newark, N. J................. See Page 266
R. L. Howard & Son......... Buffalo, N. Y.................. {{ 40
Skinner & Gifford Manufacturing Co............ JDunkirk. N. Y............... {{ 140
Speedwell Iron Works.................................. New York...................... {{ 122
Wm. Sellers & Co.... ....................................Philadelphia, Pa............ &é 64
Hoop Iron.
Atwater, Wheeler & Co................................. New Haven, Conn........... See Page 10
Jones & Laughlins................................... ...Pittsburgh, Pa................. & 4 32
Marshall Lefferts, Jr.—(Galvanized Iron)......... New York...................... {{ 44
Hoppers.
L G. Tillotson & Co..................................... New York..................... See Page 94
Horse Shoe Iron.
Pittsburgh Bolt Co................ • e o e o e o 'o, o e s to go e e o so o e o e s to Pittsburgh, Pa............... See Page 118

IRON, SPLICES AND BOLTS REQUIRED FOR ONE MILE OF TRACK. Tons of Iron.

Rule.—To find the No. of Tons of Rail to the mile, divide the weight per yard by 7, and multiply by 11, thus: for 56 lb. rail, divide 56 by 7, equal 8, multiplied by 11, equal 88 tons, for one mile of single track,

CIHWHIMND MACHINERY DE||

Salesroom, 89 Bank St, Warehouse, 57 Centre St., CLEVEL AND, OHIO.

* * * * * * * * * * * * * * * * *

MA NUFA CTURERS’ A G ENTS

BLAKE'S Steam Pumps.
BAXTER Steam Engines.
STURTEVANT'S Blowers,
TOMPKINS’ Wood-Working Machinery.
SMITH & CARVIN'S Drills and Milling Machines,

Steam, Gas and Plumbers'
Brass and Iron Goods and Tools,

Horse Shoes.

Wm. Green & Co ......................................... Wilmington, Del............ See Page 248
Reese, Graff & Woods ................................... Pittsburgh, Pa............... & 4 68
Horse Shoers’ Tools. -
Nelson Tool Works New York...................... See Page 30
Hose. -
A. Carr go Now York..................... See Page 244
Bickford, Curtiss & Deming........................... Buffalo, N. Y.................. “ 136
Crane Bros Manufacturing Co........................ Chicago, Ill.................... {{ 230
Darrow, Turner & Co.................................... New York..................... { % 62
Goodyears I. R. G. Manufacturing Co........... . “ “. ..................... {{ 252
J. D. West & Co............................................. £6 “.......... & e o e e o os e e o e o os 4t 56
New York Rubber Co.................................... $6 “ ..................... { % 260
T. B. Bickerton & Co..................................... Philadelphia, Pa............. & 6 138
Vose, Dinsmore & Co..................... ......... New York............. * * * * * * * * * $ 8 60
Hose and Ladder Straps.
Darrow, Turner & Co.................................... New York...................... See Page 62
Hose Couplings,
A. Carr........................................................ New York...................... See Page 244
Biddle Manufacturing Co............... ......... “ “ ....................... § { 12
Crane Bros. Manufacturing Co....................... Chicago, Ill.................... 6 & 230
J. J. Walworth............................................. . . . “ ...................... $6 124
Wose, Dinsmore & Co........................ • & e o 'o e o e o 'o o New York..................... {{ 60
Darrow, Turner & Co..................................... 6% “ ..................... & 6 62
Hose Jacket-
Darrow, Turner &Co.................................... New York..................... See Page 62
Hose Pipes.
Darrow, Turner & Co.................................... New York .................. ..See Page 62
Hotel Annunciators.
Charles T. Chester...... New Yo. k..................... Page 212
Geo. H. Bliss & Co.........................................Chicago, Ill.................... {{ 164
M. A. Buell...................................................Cleveland, Ohio............... 46 46

NUMBER OF RAILS, CHAIRS, OR JOINTS, PER MILE OF SINGLE TRACK.

Length of Rail. No. Length of Rail. No. Feet. ........ & 587 24 Feet. te e o be e s to e 440 20 “ ......... 528 26 “ to o to e o 'o a to • 406 21 “. ......... 503 28 “ ......... 377 22 “ ........ * 480 30 “ ........ * 352

NUMBER OF CROSS-TIES PER MILE OF SINGLE TRACK.

Distance from centre to centre, 2 feet................................... ......... 2641 ties. 66 $6 *6 2% “.............. ... .......... ------------------ 2348 “ $6 66 66 2% “.............................---------------- 2113 “ 6& 66 66 2% {{ * 1991 66 & 66 66 3 £6 * @ to 1761 66

Puscher of Nuremburg has lately suggested a solution of vastor oil in absolute alcohol for the purpose of manufacturing a tracing paper. The oil is to be diluted with one, two, or three times its bulk of alcohol, according to the thickness of the paper and the amount consequently required for rendering it transparent. This can be laid on by means of a sponge; and in a very few minutes after the application the paper will be dry, transparent, and ready for use. It will readily receive the mark of a pencil or India ink, and as by immersion in absolute alcohol: the oil can be removed, the paper can be restored to its original condition, if desired.

ANSONIA BRASS AND COPPER CO.

MANUFACTURERS OF
Braziers’, Bolt and Sheathing Copper.
Brass and Copper Wire and Tubing.
Sheet Brass. Brass Kettles.
Copper Rivets and Burs.
Copper Bottoms.
Larmp Burners and Brass Lamps.
Iron Wire, CLOCKS, &c.

OXFORD IRON CO.
Nos. 81, 83 & 85 Washington St.,
Near Rector Street, NEW YORK.

RAILROAD SPIKES, SPLICE BARs,

TRACK BOLTS and NUTS, CUT NAILS and SPIKES, IPIG. IE&ON, S&G., &c.

C O L L I E R & scrant on, Agents. E A C C N s

For Contractors, Mines, B/ast Furnaces, £o.

Adapted to every possible duty. In use by all of the principal Contractors. ALSO

BoILERs, CENTRIFUGAL PUMPs,

AND ALL KINDS OF

CONTRACTORS' MACHINERY.

S P E E D W E L L I R O N WO R K s, 36 CORTL AND ST., N E JW YOR. K.