I). VAN NOSTRAND. 13 
G-illmore’s Limes and Cements. 
Fifth Edition. Revised and Enlarged. 
8vo. Cloth. $4.00. 
PEACTICAL TEEATISE ON LIMES, HYDEAITLIC CE 
MENTS, AND MOETAES. Papers on Practical Engineering, 
U. S. Engineer Department, No. 9, containing Eeports of 
numerous experiments conducted in New York City, during the 
years 1858 to 1861, inclusive. By Q. A. Gillmore, Lt.-Ool. 
IJ. S. Corps of Engineers, Brevet Major-General U. S. Army. 
Witli numerous illustrations. 
“ This work contains a record of certain experiments and researches made 
under the authority of the Engineer Bureau of the War Department from 
1858 to 1801, upon the various hydraulio cements of the United States, and 
the materials for their manufacture. The experiments were carefully made, 
and are well reported and eompiled. ’—Journal Franklin Institute. 
Gillmore’s Coignet Beton. 
8ro. Cloth. $2.50. 
COIGNET BETON AND OTHEE ABTIFICIAL STONE. By 
Q. A. Gillmore, Lt.-Col. U. S Corps of Engineers, Brevet 
Major-General IT. S. Army. 9 Plates, Views, etc. 
This work describes with considerable minuteness of detail the several kinds 
of artificial stone' in most general use in Europe and now beginning to be 
introduced in the United States, discusses their properties, relative merits, 
and cost, and describes the materials of which they are composed 
The subject is one of special and growing interest, and we eommend the work, 
embodying as it does the matured opinions of au experienced engineer and 
expert. 
Gillmore on Roads. 
12mo. Cloth. In Press. 
A PEACTICAL TEEATISE ON THE CONSTEITCTTON 
OE EOADS, STEEETS, AND PAVEMENTS. By Q. A. 
Gillmore, Lt.-Col. U. S. Corps of Engineers, Brevet Major- 
General U. S. Army.