CIENCE 



[Entered at the Post-Offlce of New York, N.Y., as Second-Class Matter.] 



A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES. 



Sevknth Year. 

 Vol. XIV. No. 339. 



NEW YORK, August 2, iS 



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ELECTRIC LIGHTING BY THE KNOWLES SYSTEM. lamp-use is obtained. It is maintained that this system is more 



economical, and that it allows of longer circuits, than that of direct 

 This system consists of a central station containing the dyna- distribution, 

 mos for the generation of the current, which is then conducted to The system has been in operation for some time in Brooklyn, 



FIG. I. — STORAGE-BATTERY OF MUTUAL ELECTRIC MANUFACTURING COMPANY, KNOWLES PATENT. 



the several points at which it is to be used. At these points, in- one of the battery-plants being located at 1 87 Montague Street, 

 stead of passing the current through the lamps, it is employed in the generating-station being on Graham Street, where will be found 

 storage-batteries ; and from these storage-batteries the current for the necessary boilers, engines, dynamos, and regulators. 



