. Cassier's magazine. turbine will soon be largely adopted forocean mail and passenger services, andat no distant period for cargo land the use of the steam turbinehas extended considerably in the pastyear, but it cannot yet be said that it is displacing the reciprocating high-speedengine. In certain situations, wherecondensing water and superheated steamare available, and where space is limited,turbines have many advantages; but,on the other hand, the reciprocatingengine is, without doubt, the better typewhere condensing apparatus is not used,and where superheated steam is not con
. Cassier's magazine. turbine will soon be largely adopted forocean mail and passenger services, andat no distant period for cargo land the use of the steam turbinehas extended considerably in the pastyear, but it cannot yet be said that it is displacing the reciprocating high-speedengine. In certain situations, wherecondensing water and superheated steamare available, and where space is limited,turbines have many advantages; but,on the other hand, the reciprocatingengine is, without doubt, the better typewhere condensing apparatus is not used,and where superheated steam is not con-tinuously available. It is a curious circumstance that bothturbines and the practice of superheatingare merely revivals of inventions which,up to a few years ago, had long beendiscarded as not offering any prospectof success, and that at the present timethey give greater promise of advance-ment than any other features of steamengineering. The genius of Watt wasdirected to the improvement of the pis- CASSIERS MAGAZINE. ONE OF THE 5OOO-K. W. CURTIS STEAM TURBINE ALTERNATORS, BUILT BY THE GENERAL ELEC-TRIC COMPANY, SCHENECTADY, NEW YORK, IN THE STATION OF THE COMMONWEALTHELECTRIC COMPANY AT CHICAGO. TOTAL HEIGHT, 35 FEET 6 INCHES. DIAMETEROF ARMATURE, 14 FEET 3 INCHES. THREE SUCH UNITS ARE NOW IN OPER-ATION AT THIS STATION, WHICH IS DESIGNED FOR AN ULTIMATECAPACITY OF 60,000 K. W. STEAM ENGINEERING IN 1904 ton engine, and thus led engineersthoughts away from the possibilities ofthe turbine; and at a certain stage inthe development of the piston engine,the fascinations of high boiler pressures,multiple cylinders, and the difficultiesof lubrication and packing under hightemperatures diverted attention from apractice which was practically discardedfrom the year 1865 to within the lastfive years. Now, however, lubricationand packing difficulties have been ingreat degree surmounted, with the re-sult that superheating has again beentaken up with great success. Turning to the high-speed
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