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MCINTOSH BATTERY AND OPTICAL CO., CHICAGO, ILL., U. S. A. 13 The exhibitor being provided with an outfit with which either form of light can be employed is prepared for all emergencies. In a small hall his oil light will be sufficient and will save expense, while in a large hall his more powerful light will be at hand, and in case of breakage of any part of his apparatus for the lime light, he can furnish a very creditable entertainment with his Sun-Light Lamp. We do not offer this as a perfect substitute for the ether-oxygen or oxy-hydrogen lime light, but we claim that it far surpasses any oil light in the market, and that the cheapness of this light with the rapidity of lighting up is a practical advantage for many purposes. The McIntosh Sciopticon, in simplicity, compactness and brilliancy of illumination, surpasses every other oil lantern we have seen. The price is as low as a satisfactory apparatus can be manu- factured for, and we do not hesitate to guarantee that the purchaser will find it in all respects as we represent. The McIntosh Sciopticon is the only Oil Lantern that will show a plain or colored photographic transparency on the screen 12 feet in diameter, as it should be, the picture being perfectly distinct, and the light forming a fair substitute for the lime light. The McIntosh Sciopticon has a burning surface of 12 lineal inches of wick, arranged in such a form as to allow all the rays to be caught within the radius of the condenser. The McIntosh Sciopticon is perfect in combustion, casting a beautifully white and flat field, entirely shadowless. The oil in the lamp remains quite cool, owing to the perfect ventilation inside the lantern. The McIntosh Sciopticon has a special combinationof lenses adapted expressly to utilize the whole light of the lamp in producing a uniformly illuminated image, free from chromatic or spherical aberration, and capable of perfect adjustment at varying distances. The McIntosh Sciopticon is arranged so that the slide carrier, lens holder and brass cell holding the condensers are movable, thus insuring perfect adaptation to all distances and for all purposes where an oil light could reasonably be expected to give satisfaction. The McIntosh Sciopticon is made in a thoroughly substantial manner, every part being fastened with screws, and will bear any amount of rough usage, to which it must necessarily be subjected, when forming a part of a traveling exhibitor’s outfit.