4 WORKS IN ENGINEERING, SURVEYING, ETC., 
Levelling. 
A TREATISE on the PRINCIPLES and PRACTICE of 
LEVELLING; showing its Application to Purposes of Railway 
and Civil Engineering, in the Construction of Roads; with Mr. 
TELFORD’s Rules for the same. By FREDERICK W. SIMMS, 
F.G.S., M. Inst. C.E. Sixth Edition, very carefully revised, with 
the addition of Mr. Law’s Practical Examples for Setting out 
Railway Curves, and Mr. TRAUTWINE’S Field Practice of Laying 
out Circular Curves. With 7 Plates and numerous Woodcuts. $8vo, 
8s. 6d. cloth. *,* TRAUTWINE on Curves, separate, 55. 
‘* The text-book on levelling in most of our engineering schools and colleges.”—= 
Engineer. : ‘ 
Practical Tunnelling. 
PRACTICAL TUNNELLING: Explaining in detail the Setting 
out of the Works, Shaft-sinking and Heading-Driving, Ranging 
the Lines and Levelling under Ground, Sub-Excavating, Timbering, 
and the Construction of the Brickwork of Tunnels with the amount 
of labour required for, and the Cost of, the various portions of the 
work. By F. W. Simms, M. Inst. C.E. Third Edition, Revised 
and Extended. By D. KINNEAR CLARK, M.1.C.E. Imp. 8vo, 
with 21 Folding Plates and numerous Wood Engravings, 30s. cloth. 
“‘Tt has been regarded from the first as a text-book of the subject. . . . Mr. Clark 
has added immensely to the value of the book.” —Axgzneer. ; 
Steam. 
STEAM AND THE STEAM ENGINE, Stationary and Port- 
~ able. Being an Extension of Sewell’s Treatise on Steam. By D. 
KINNEAR CLARK, M.I.C.E. Second Edition. 12mo, 4s. cloth. 
Civil and Flydraulic Engineering. : 
CIVIL ENGINEERING. By Henry Law, M. Inst. C.E. 
Including a Treatise on Hydraulic Engineering, by GEORGE R. 
BuRNELL, M.I.C.E. Sixth Edition, Revised, with large additions 
on Recent Practice in Civil Engineering, by D. KINNEAR CLARK, 
M. Inst. C.E. 12mo, 7s. 6d¢., cloth boards. 
Gas-Lighting. 
COMMON SENSE FOR GAS-USERS: a Catechism of Gas- 
Lighting for Householders, Gasfitters, Millowners, Architects, 
Engineers, &c. By R. WILSON, C.E. 2nd Edition. Cr. 8vo, 2s. 6d. 
Bridge Construction in Masonry, Timber, & Tron. 
EXAMPLES OF BRIDGE AND VIADUCT CONSTRUC. 
TION IN MASONRY, TIMBER, AND IRON ; consisting of 
46 Plates from the Contract Drawings or Admeasurement of select 
Works. By W. Davis HASKOLL, C.E. Second Edition, with 
the addition of 554 Estimates, and the Practice of Setting out Works, 
with 6 pages of Diagrams. Imp. 4to, 2/. 12s. 6d. half-morocco, 
‘* A work of the present nature by a man of Mr. Haskoll’s experience, must prove 
invaluable. The tables of estimates considerably enhance its value.” —Hzgineering. 
Earthwork. 
EARTHWORK TABLES, showing the Contents in Cubic Yards 
of Embankments, Cuttings, &c., of Heights or Depths up to an 
average of 80 feet. By JOSEPH BROADBENT, C,E., and FRANCIS 
Csmvin, C.E, Cr. 8vo, oblong, 5s, cloth, 
