TELEGRAPH CODES.

Business Telegraphic Code. 300 pp. narrow 8vo. (Size 4¾ in. by 7¾ in. and ½ in. thick, and weight 10 oz.) (New York, 1906) net 1100
Miners’ and Smelters’ Code (formerly issued as the Master Telegraph Code). 448 pp. 8vo, limp leather, weight 14 oz. (New York, 1899) net 2100
Billionaire Phrase Code, containing over two million sentences coded in a single word. 56 pp. 8vo, leather. (New York, 1908) net 66

WARMING AND VENTILATION.

Hot Water Supply. By F. Dye. Fifth edition,48 illus. 86 pp. crown 8vo. (1902) net 30
A Practical Treatise upon Steam Heating. ByF. Dye. 129 illus. 246 pp. demy 8vo. (1901) net 100
Practical Treatise on Warming Buildings byHot Water. By F. Dye. 192 illus. 319 pp.8vo. cloth. (1905) net 86
Charts for Low Pressure Steam Heating. ByJ. H. Kinealy. Small folio. (New York) 46
Formulæ and Tables for Heating. By J. H.Kinealy. 18 illus. 53 pp. 8vo. (New York, 1899) 36
Mechanics of Ventilation. By G. W. Rafter.Second edition, 18mo, boards. (New York, 1896) net 20
Principles of Heating. By W. G. Snow. 62 illus.161 pp. 8vo. (New York, 1907) net 86
Furnace Heating. By W. G. Snow. 44 illus.170 pp. 8vo. (New York, 1905) net 66
Ventilation of Buildings. By W. G. Snow and T.Nolan. 83 pp. 18mo, boards. (New York, 1906) net 20

WATER SUPPLY.

(See also [Hydraulics].)

Potable Water and Methods of Testing Impurities.By M. N. Baker. 97 pp. 18mo,boards. (New York, 1905) net 20
Manual of Hydrology. By N. Beardmore. Newimpression, 18 plates, 384 pp. 8vo. (1906) net 106
Boiler Waters, Scale, Corrosion and Fouling. ByW. W. Christie. 77 illus. 235 pp. 8vo, cloth.(New York, 1907) net 126
Water Softening and Purification. By H. Collet.Second edition, 6 illus. 170 pp. crown 8vo. (1908) net 50
Treatise on Water Supply, Drainage and SanitaryAppliances of Residences. By F. Colyer. 100pp. crown 8vo. (1899) net 16
Report on the Investigations into the Purificationof the Ohio River Water at Louisville,Kentucky. By G. W. Fuller. 8 plates, 4to,cloth. (New York, 1898)2 20
Purification of Public Water Supplies. By J. W.Hill. 314 pp. 8vo. (New York, 1898) 106
Well Boring for Water, Brine and Oil. By C. Isler.90 illus. 8vo, cloth net 100
Method of Measuring Liquids Flowing throughPipes by means of Meters of Small Calibre.By Prof. G. Lange. 1 plate, 16 pp. 8vo, sewed net 06
On Artificial Underground Water. By G.Richert. 16 illus. 33 pp. 8vo, sewed. (1900) net 16
Notes on Water Supply in new Countries. By F.W. Stone. 18 plates, 42 pp. crown 8vo. (1888) 50
The Principles of Waterworks Engineering.By J. H. T. Tudsbery and A. W. Brightmore.Third edition, 13 folding plates, 130 illus. 447 pp.demy 8vo. (1905) net110