690 OPTIC PROJECTION 



Foos Gas Engine Co., Springfield, Ohio. Oil, gas and gasoline engines for 

 supplying the power for a private electric lighting plant and for projection, 

 8 683. 



Fort Wayne Electric Works of the General Electric Co. Compensarc instead 

 of a rheostat, 736. 



R. Fuess, Steglitz bei Berlin, Germany. Optical instruments, projection 



apparatus, heliostats, etc., fig. 79, 84. 

 General Electric Company, Schenectady, New York. Electric apparatus of 



all kinds, generator sets, mercury arc rectifiers, mazda concentrated filament 



lamps, and nitrogen lamps for the magic lantern, etc., fig. 258-264, 754. 

 General Film Company, 200 Fifth Ave., New York. Educational films for 



the moving picture machine, Ch. XI. 



General Specialty Company, St. Louis, Mo. Indirect and semi-indirect 

 lighting fixtures, 606. 



J. H. Centner Co., Newburgh, N. Y. Mirroroide screens 629. 



Gregory Electric Company, 16 & Lincoln Sts., Chicago, 111. Electric supplies, 

 generators, motors, etc., Ch. XIII. 



Gundlach-Manhattan Optical Co., Rochester, New York. Photographic 

 objectives and cameras, microscopes, projection objectives for moving pic- 

 tures, etc., fig. 229. 



J. H. Halberg, 36 East 23d St., New York. Moving picture machines and 

 supplies of all kinds. 



Hartford Machine Screw Company, Hartford, Conn., fig. 161. 



Harvey Hubbell, Inc., Bridgeport, Conn. Manufacturers of Machinery, tools, 

 Electrical specialties, fig. 48-50, 268-269. 



P. Keller & Co., Successors to J. B. Colt Co., 465 Greenwich St., New York. 

 Projection apparatus and accessories, fig. 36. 



Kleine Optical Company, 166 North State Street, Chicago, 111. Motion pic- 

 ture apparatus and supplies; theater supplies. 



Max Kohl, Chemnitz, Germany. Projection apparatus and accessories, 

 chemical and physical apparatus, fig. 68, 81. 



F. Koristka, Milano, 2 Via G. Revere. Italy. Microscopes and projection 

 apparatus, fig. 181. 



Ward Leonard Electric Company, Bronxville, N. Y. Rheostats, circuit 

 breakers, theater dimmers, etc., fig. 147, 183, 186-187, 723. 



List of Electrical Fittings. Published by the National Board of Fire Under- 

 writers, 135 William St., N. Y., 691. Manufacturers of standard fittings 

 and supplies. 



Ernst Leitz, Wetzlar, Germany, 30 East i8th St., New York. Microscopes, 

 photographic objectives, projection apparatus, fig. 41, 96, 123, 163, 202-205. 



T. H. McAllister Company, 49 Nassau St.. New York. Projection apparatus 

 and lantern slides, fig. 89. 



Mclntosh Stereopticon Company, 35 and 37 Randolph Sts., Chicago, 111. 

 Projection apparatus and lantern slides, fig. 66, 166. 



Motion Picture Camera Company, 5 West I4th St., New York. Cameras 

 and projectors for moving pictures. 



Motion Picture Screen Company, Shelbyville, Indiana. Mirror screens, 629, 

 6291, 630. 



