Roberts CR99712 Manual de usuario descargar pdf (Pagina 269)

100

101

LOCK. 200 illus. 850 pp. demy 8vo. (1901 ) net 1 1 0

=Mining and Ore-Dressing Machinery.= By

C. G. W. LOCK. 639 illus. 466 pp. super-royal 4to.

(1890 ) 1 5 0

=Miners’ Pocket Book.= By C. G. W. LOCK. Fifth

edition, 233 illus. 624 pp. fcap. 8vo, leather, gilt

edges. (1908 ) net 10 6

=Chemistry, Properties and Tests of Precious

Stones.= By J. MASTIN. 114 pp. fcap. 16mo, limp

leather, gilt top. (1911 ) net 2 6

=Tests for Ores, Minerals and Metals of Commercial

Value.= By R. L. MCMECHEN. 152 pp.

12mo. (New York, 1907 ) net 5 6

=Practical Handbook for the Working Miner

and Prospector=, and the Mining Investor. By

J. A. MILLER. 34 illus. 234 pp. crown 8vo.

(1897 ) 7 6

=Theory and Practice of Centrifugal Ventilating

Machines.= By D. MURGUE. 7 illus. 81 pp. 8vo.

(1883 ) 5 0

=Examples of Coal Mining Plant.= By J. POVEY-HARPER.

Second edition, 40 plates, 26 in. by

20 in. (1895 ) net 4 4 0

=Examples of Coal Mining Plant, Second Series.=

By J. POVEY-HARPER. 10 plates, 26 in. by 20 in.

(1902 ) net 1 12 6

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