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Colors, for Freight and Coal Cars. C E. Hecht.................................................. Easton, Pa..................... See Page 158 Jno. W. Masury & Son.................................New York..................... {{ 214 Colors—in Oil. C. E. Hecht.......................................... Easton, Pa........... *_* < * * * * * * See Page 158 Jno. W. Masury & Son................................. New York............ ........ “ 214 Commission Merchants,

G. W. Matthews...... * * * Philadelphia, Pa............See Page 38 Jno. W. Quincy....................................... .....New York............ e e s to e s - e. e. e. & 4 178 Winans & Co à e e i & 4 ee e s see ee e. e. e. e. e s = < * * * * * * ... to e o & © to * { “....................... “ 106

Corm passes. F. Eckel...................................................... New York..................... See Page 76 Kuebler & Seelhorst ......Philadelphia, Pa...... to t e o e o 'o {{ 216 Wm. J. Young & Sons................................... { % “.............. {{ 138

* * Cornposition Castings.

Philadelphia Smelting Co.............................. Philadelphia, Pa............See Page 134

Condensers, A. Carr.................' & s e ee e o se & se e e s - e. e. e. e. & e e s e s - e. e. e. e. e. e. e. e s a • New York...................... See Page 244

Conductors' Punches.

Allen, Lane & Scott....... # * * * * * * * * * * * * * * * * * * * * * * * * * * ~ * Philadelphia, Pa............ See Page 90 Geo. H. Crain & Co..................................... ..Chicago, Ill.................... . . . 124 L. W. Pond...................... to e o 'o o e - e. e. g. so e o e o 'o - e o e o 'o to e ....Worcester, Mass.............. 44 158 Wose, Dinsmore & Co.................................... New York....................... & & 60

Contractors. Geo. H. Crain & Co.................... .................. Chicago, Ill.................... See Page 124 Joseph Churchyard...................................... Buffalo, N. Y............... .. { % 16() Phillipsburg Manufacturing Co..................... New York..................... 44 22

Contractors’ Machinery.

Speedwell Iron Works...... * * * New York...................... See Page 122

LAP wildED AMERICAN CHARCOAL IRON BOILER TUBES.
Table of Standard Sizes.—Morris, Tasker do Co.

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... 11.731 ... 3512 ... 11.033 ... 0.119 ... 1.088 ... 1.018 ... 9.687 ... 11.045 ... 4.399 ... 12.66 ... 3,741 ... 11.753 ... 0.130 ... 1.023... 0.955 ... 10.992 ... 12.566 ... 3,320. ... 14.137 . 4.241 ... 13.323 ... 0.130 ... 0.901 ... 0.849 ... 14.126 ... 15.904 ... 0.010 1573 . 4.72 ... 14.818 ... 0.140 ... 0.809 ... 0.764 ... 17.497 ... 19.633 ... 7,226 ... 1384) .. 5.699 ... 17.904 ... 0.151 ... 0.670 ... 0.637 ... 25.509 ... 28.274 ... 9.346. ... 21.901 ... 6.657 ... 2.914 ... 0.172 ... 0.574 ... 0.545 ... 34.8 5 ... 38.484 ... 12435 ... 25.133 ... 7,636 ... 23.989 ... 0.182 ... 0.500 ... 0.478 ... 45.795 ... 50.265 ... 15.102. ... 23.371 .. 8,615 ... 27.055 ... 0.193 ... 0.444 ... 0.424 ... 58.291 ... 63.61.7 ... 18.002. 10 "... 31.416 ... 9.573 ... 30,074... 0.214 ... 0.399 ... 0.382 ... 71.975 ... 78.540 ... 22.19

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. PNP & E T Ye. P. YPURE (so -Li HNSEED

OTI,

RAW, BOILED
AND REFINED.

Factory, Port Richmond, Staten Island.

JOHN JEWETT & SONS, Office, 182 Front St.,

N E W Y O R. K.

Contractors’ Supplies. Greene & Randolph ...New York..................... See Page 54 Pratt & Co................................ * * * * * * * * to e o to to to a to e o e Buffalo, N. Y.................. { % 132 Contractors’ Tools. Jno. Bayliss.... ...................... New York.....................See Page 76 - Copper- . Ansonia Brass & Copper Co........................... New York...................... See Page 122 Bruce & Cook............................................... {{ “........................ & 6 112 Chas. W. Matthews e Philadelphia, Pa............ £6 38 Geo. Worthington & Co................................. Cleveland, Ohio....... * @ e o to $ to {{ 100 Holmes & Lissberger..................................... New York...............* * * * * * * {{ 84 Philadelphia Smelting Co.............................. Philadelphia, Pa............. {{ T34. Sidney Shepard & Co..........• . . . . . . . . . . . . . . . . . . . . . . . . . Buffalo, N. Y.................. {{ 196 Copper—Bottoms. Holmes & Lissberger.................................... New York..................... See Page 84 Copper—Ingot. Lucius Hart & Co...... * g o e o o te e o 'o e o e o os o e s to e e o 'o e o 'o * e o e o e o oNew York...................... See Page 56 Jno. W. Quincy........................................... { % “........................ { % 178 - Copper—Locomotive Sheets. Ansonia Brass & Copper Co........................... New York..................... See Page 122 Holmes & Lissberger...................................... & & “...................... § { 84 Copper Nails. Ansonia Brass & Copper Co............................ New York..................... See Page 122 Copper Rivets and Burs. Ansonia Brass & Copper Co........................... New York ....................See Page 122 Holmes & Lissberger...............•e e o 'o e o e s to o e g o e o e o 'o e o 'o $% “ ....................... {{ 84 - Copper Tubing. Ansonia Brass & Copper Co........................... New York...................... See Page 122 Holmes & Lissberger.................................... § { “....................... 66 84 PAINTER'S PUTTY. Spanish whiting, pulverized...... 81.6 Made into a stiff paste. If not intended for Boiled Oil................................. 20.4 immediate use, raw oil should be used.

One pound of putty for stopping every 20 yards.

GLAZIER'S PUTTY.

Whiting, 70 pounds; boiled oil, 30 pounds; water, 2 gallons. Mix. If too thin, add more whiting; if too thick, add more oil.

TO SOFTEN PUTTY.

To remove old putty from broken windows, dip a small brush in nitro-muriatic acid or caustic soda (concentrated lye), and with it annoint or paint over the dry putty that adheres to the broken glass and frames of your windows; after an hours interval, the putty will have become so soft as to be easily removable.

W &I } HT OF ONE FOOT OF COPPER, RODS.
Diameter

Diameter Diameter

in inches. Pounds. in inches. Peunds. in inches. Pounds.

% ............ .189 || 1 % ............ 3.831 2.% ............ 17.075 5-16 ............ .295 3-16 ............ 4.269 % “... .ol. % ............ .425 % ............ 4.73(' % ............ 20.856 7–16 ............ .579 5-16 ............ 5.214 % ...... ...... 22.891 % ............ .756 % ............ 5.730 # . 25.019 9–16 ............ .958 7–16 ............ 6.254 3. ............ 27.243 % ............ 1.182 % ............ 6.81.1 % ............ 29.560 11-16 ............ 1.430 9-16 ............ 7.389 % ............ 31.972 % ............ 1.702 % ............ 7.993 % ............ 34.481 13–16 ............ J.998 % ............ 9.27() % ------...... 37.080 to e o so go to se e o & e o 2.317 % ........... 10.54% % ............ 39.777 15–16 ............ 2.660 || 2: ............ 12.108 % ............ 42.563 to e s to e g o go & e o o 3.027 #3 "... }; % ............ 45.455 1-16 ............ 3.417 % ........... , i5.325 4. ............ 48.433

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10 BURLING SLIP, COR. WATER ST.,
N TE W Y O EP. IX.

-J O H N E A Y L I s s , 157 EAST 54th STREET, - NEW YORK,

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Warranted to save 33%. Coal, and same amount of Time; does not choke up Or burn up. ALSO, MANUFACTUREH of

CONTRACTORS TOOLS AND RAILROAD supplies.

so SEND FOR CATALOGUE

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Copper Wire.

Ansonia Brass & Copper Co........................... New York....................... See Page 122
- Copper Wire—insulated.
Charles T. Chester........................................ New York...................... See Page 212
Geo. W. Mowbray........................................ North Adams, Mass......... & 6 182
Copying Presses.
T. Shriver & Co.............................. ............. New York....................... See Page 194
Cordage.
De Grauw, Aymar & Co................................. New York...................... See Page 112
Sidney Shepard & Co..................................... Buffalo, N. Y.............. & © e s {{ 196
Corrugated Iron.
John Merry & Co.......................................... New York...................... See Page 48
Marshall Lefferts, Jr.................................... {{ “ ....................... § { 44
Noyes & Wines............................. • & © & © e o & & s 6 & & © so & {{ “ ..................... { % 264
Tyng & Co.................................................... New York...................... “ 260
Cotter Drills.
Wm. Sellers & Co......................................... Philadelphia, Pa............ See Page 64
Cotton Waste.
J. J. Walworth........................... * to go to go to e o e * @ e o e s e o s Chicago, Ill................... See Page 124
L. G. Tillotson & Co...................................... New York, .................... & & 94.
Radley & McAlister Manufacturing Co............ { % “....................... “ 250
T. B. Bickerton & Co.................................... Philadelphia, Pa............ { % 138
Wose, Dinsmore & Co..................................... New York..................... {é 6.0
Couplings.
A. Fulton's Son & Co.................................... Pittsburgh, Pa..... ......... See Page 116
Darrow, Turner & Co.................................... New York..................... 4 & 62
Radley & McAlister Manufacturing Co............ {{ “....................... & 4 25()
Wose, Dinsmore & Co.......................... * * > * > * * * * * * $6 “............... ....... {{ 60
Covered Wires—Silk and Cotton. .
Bishop Gutta Percha Works........................... New York............. o g o os e o & See Page 34
C. Thompson................................................ Philadelphia, Pa............ € $ 222
Charles T. Chester.........................................New York...................... “ 212
Geo. H. Bliss & Co........................... & e o e o e < * s to € 6 & © Chicago, III .... ............. & 4 164:
Leclanche Battery Co.................................... New York...................... {{ 96

SURFACE HARDENING OF CAST-IRON.

The wearing of cast-iron surfaces expesed to sliding friction can be almost wholly prevented by tempering the surface with a mixture of 21 1-10 pints of water, 30% pounds of sulphuric acid, and 1,003 grains of nitric acid. The article should be heated to a cherry-red, and protected from the oxidizing effect of currents of air by a sheet-iron box. The process is especially adapted to the hardening of bearings of axles, which, while much cheaper than those of the usual alloy, will, when regularly ubricated, last as long, even when there is great rapidity of motion.

RIVETED IRON PIPEs.
Weight per Running Foot.

. These weights include laps for riveting and calking, but not the rivets, the weight of which depends upon the sizes and number used.

Bore. Thickness of Metal, Inch. BOre. Thickness of Metal, Inch. Inch. 9% % % Inch. 3% % % 5 7.15 ...... 10.7 ...... 1423 11 22.75 ...... 30.45 ...... 38.15 % - 7.8 ...... 11.71 ...... I5.61 12 24.8 ...... 33. ...... 41.25 6 8.45 ...... 12.6 ...... 16.85 13 26.75 ...... 35.75 ...... 44.55 % 9.05 ...... 13.61 ...... 18.15 14 28.65 ...... 38.45 ...... 47.1 7 9.75 ...... 14.65 ...... 19.55 .15 30.83 ...... 41. ...... 51.45 % 10.45 ...... 15.7 ...... 20.85 | 16 32.94 ...... 43.75 ...... 54.75 8 11.15 ..... . 16.65. ...... 22.25 17 34.85 ...... 46.45 ...... 58.1 %. 11.85 ...... 176 ...... 23.55 18 36.3 ...... 49.1 ...... 61.4 9 12.5 ...... 1875 ...... 25 19 38. ...... 51.75 ..... , 64.7 % 13.15 ... ... 19.75 ...... 26.25 20 41.2 ...... 50.6 -----. 6S 10 13.96 ... 20.8 ...... 27,7 % 14.45 ...... 21.75 ...... 29.1

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