luding the Modelling, Constructing, and Management of
Steam-Engines and Steam Boilers. With valuable illustrations. By
STEPHEN ROPER, Engineer. Sixteenth edition, revised and enlarged.
18mo., tucks, gilt edge. $2.00

$ROPER.--Engineer's Handy-Book$:

Containing a full Explanation of the Steam-Engine Indicator, and
its Use and Advantages to Engineers and Steam Users. With Formulae
for Estimating the Power of all Classes of Steam-Engines; also,
Facts, Figures, Questions, and Tables for Engineers who wish to
qualify themselves for the United States Navy, the Revenue Service,
the Mercantile Marine, or to take charge of the Better Class of
Stationary Steam-Engines. Sixth edition. 16mo., 690 pages, tucks,
gilt edge. $3.50

$ROPER.--Hand-Book of Land and Marine Engines$:

Including the Modelling, Construction, Running, and Management of
Land and Marine Engines and Boilers. With illustrations. By STEPHEN
ROPER, Engineer. Sixth edition. 12mo., tucks, gilt edge. $3.50

$ROPER.--Hand-Book of the Locomotive$:

Including the Construction of Engines and Boilers, and the
Construction, Management, and Running of Locomotives. By STEPHEN
ROPER. Eleventh edition. 18mo., tucks, gilt edge. $2.50

$ROPER.--Hand-Book of Modern Steam Fire-Engines.$

With illustrations. By STEPHEN ROPER, Engineer. Fourth edition,
12mo., tucks, gilt edge. $3.50

$ROPER.--Questions and Answers for Engineers.$

This little book contains all the Questions that Engineers will be
asked when undergoing an Examination for the purpose of procuring
Licenses, and they are so plain that any Engineer or Fireman of
ordinary intelligence may commit them to memory in a short time. By
STEPHEN ROPER, Engineer. Third edition. $3.00

$ROPER.--Use and Abuse of the Steam Boiler.$

By STEPHEN ROPER, Engineer. Eighth edition, with illustrations.
18mo., tucks, gilt edge. $2.00

$ROSE.--The Complete Practical Machinist$:

Embracing Lathe Work, Vise Work, Drills and Drilling, Taps and
Dies, Hardening and Tempering, the Making and Use of Tools, Tool
Grinding, Marking out Work, etc. By JOSHUA ROSE. Illustrated by 356
engravings. Thirteenth edition, thoroughly revised and in great
part rewritten. In one vol., 12mo., 439 pages. $2.50

$ROSE.--Mechanical Drawing Self-Taught$:

Comprising Instructions in the Selection and Preparation of Drawing
Instruments, Elementary Instruction in Practical Mechanical
Drawing, together with Examples in Simple Geometry and Elementary
Mec