on relative to this invention tached to any twin propellers without altering the ex- T. Holland, of Perryville, Ky. Figs. 1 and 3 show the isting engines. address Messrs. Boom & Loevinger, White Lake, device in different positions in use, Fig. 2 being an- South Dakota. other view, in perspective.… … 23, last year, with an exposure of 1h. 15 m. This showed the Merope nebula ROBERTSON & HOLLAND'S CORN conspicuously, the sharp prong of ne- upon the other, and at the lower end of one standard bulosity from Electra, and some of are guard plates, offset to afford clearance for a thin- the nebulosity…
Internet Archive · Public domain (published before 1931). Free to use for anything.