c. W. T. Gregg, 75 Fulton St., N. Y.

Engines. Geo. F. Shedd, Waltham, Mass.

The Mackinnon Pen or Fluid Pencil. The commercial pen of the age. The
only successful reservoir pen in the market. The only pen in the world
with a diamond circle around the point. The only reservoir pen supplied
with a gravitating valve: others substitute a spring, which soon gets
out of order. The only pen accompanied by a written guarantee from the
manufacturers. The only pen that will stand the test of time. A history
of the Mackinnon Pen, its uses, prices, etc., free. Mackinnon Pen Co.
200 Broadway, New York.

Among the numerous Mowing Machines now in use, none ranks so high as the
Eureka. It does perfect work and gives universal satisfaction. Farmers
in want of a mowing machine will consult their best interests by sending
for illustrated circular, to Eureka Mower Company, Towanda, Pa.

Peck's Patent Drop Press. See adv., page 333.

The Inventors Institute, Cooper Union Building, New York. Sales of
patent rights negotiated and inventions exhibited for subscribers. Send
for circular.

Fragrant Vanity Fair Tobacco and Cigarettes. 7 First Prize
Medals--Vienna, 1873: Philadelphia. 1876; Paris, 1878: Sydney,
1879--awarded Wm. S. Kimball & Co., Rochester, N. Y.

Superior Malleable Castings at moderate rates of Richard P. Pim,
Wilmington, Del.

Wood Working Machinery of Improved Design and Workmanship. Cordesman,
Egan & Co., Cincinnati, O.

The E. Stebbins Manuf'g Co. (Brightwood, P. O.), Springfield, Mass., are
prepared to furnish all kinds of Brass and Composition Castings at short
notice; also Babbitt Metal. The quality of the work is what has given
this foundry its high reputation. All work guaranteed.

The "1880" Lace Cutter by mail for 50 cts.; discount to the trade.
Sterling Elliott, 262 Dover St., Boston, Mass.

The Tools, Fixtures, and Patterns of the Taunton Foundry and Machine
Company for sale, by the George Place Machinery Agency, 121 Chambers
St., New York.

Improved Rock Drills and Air Compressors, Illustrated catalogues and
information gladly furnished. Address Ingersoll Rock Drill Co., 11/2
Park Place. N. Y.

Mineral Lands Prospected, Artesian Wells Bored, by Pa Diamond Drill Co.
Box 423. Pottsville, Pa. See p. 349.

Experts in Patent Causes and Mechanical Counsel. Park Benjamin & Bro.,
50 Astor House, New York.

Corrugated Wrought Iron for Tires on Traction Engines, etc. Sole mfrs.
H. Lloyd, Son & Co., Pittsb