The Sewage Question; on the Treatment and Utilization of Sewage, the Preparation of Land for Irrigation, and for Intermittent Downward Filtration, by J. Bailey Denton, Mem. Inst. C.E., F.G.S., 8vo, sewed
2 0
Silver Mines.
Vazeeri Rupi, the Silver Country of the Vazeers, in Kulu: its Beauties, Antiquities, and Silver Mines, including a Trip over the lower Himalayah Range and Glaciers, by J. Calvert, F.G.S., Mem. Inst. C.E., illustrated with a map and coloured plates, 8vo, cloth
16 0
Slide Valve.
The Slide-Valve practically considered, by N. P. Burgh, Engineer, fifth edition, containing 88 illustrations and 121 pages of letterpress, crown 8vo, cloth
5 0
Slide Valve. Designing Valve-gearing.