Illustrated Catalogue Of Magic Lanterns (after November 1889, probably 1890)

MCINTOSH BATTERY AND OPTICAL CO., CHICAGO, ILL., D. S. A. 67 thing that we wish to guard you against is the temperature in the room in which you are using the Oxy-Ether Light, and, that is if the temperature of the room is below 60° Fahr. you should use artificial heat to warm the saturator; simply wrap the satu- rator in several thicknesses of ordinary flannel, and place there- upon a hot brick, or a bottle of hot water, so that the ether is made warm enough to volatilize readily. One more essential point; if you are using a gas bag, a sufficient weight must be placed thereon, never less than 300 pounds dead weight; even with this heavy weight, the pressure to the square inch is only a little over ounces to the square inch. Careful attention to these de- tails will insure a good light. All of the jets and compound dis- solvers manufactured by us can be used with either the Ether Oxygen or Oxy-Hydrogen, or with the Oxy-Calcium Light. Arlington, Tex., April 6, 1889. McIntosh Optical Co., Chicago : Gentlemen.— All is lovely, Light splendid, all I could ask. The trouble at first was soon overcome. I handle the light now easier than oil. I thank you for the kind letter of the 3d. I now take the road. Very respectfully, OSCAR J. LAWRENCE. Upper Sandusky, Ohio, April 26, 1889. McIntosh Battery and Optical Co. : Gents.— After 31 nights consecutive use of the Melntosh-Ives Ether Saturator as a sub- stitute for hydrogen gas, In exhibiting the Government collection of Brady’s War Views. I am pleased to state that It has proven satisfactory beyond my most sanguine hopes. I have used it both with gas bag and cylinder, and experienced no trouble whatever with it, and I consider my light equal to that produced by mixed gases in the usual way. The thanks of all exhibitors are due you for having eliminated from the business, the danger, trouble and disagreeable features of making and handling hydrogen gas. I use only the best ether, and even then the expense is only about 26 cents per hour. Very truly yours, JOHN D. CRESS. Indianapolis, Aug. 17,1889. McIntosh B. & O. Co.: Dear Sirs.— Letter and lime at hand and all Is satisfactory. Thanks for kindness. Permit me the pleasure of testifying to the worth of your Ether-Oxygen light. Having used your Saturator for six months, I am more than satisfied with it; I am delighted. It Is so simple in its method of operation that a child might be taught in ten minutes’ time to use it with perfect safety. It has never failed me in a single instance. It is the universal judgment that its light is better than that of the Oxy-Hydrogen. Yours truly, F. S. T1NCHER, 244 Ash St. Syracuse, N. Y., Nov. 15,1888. McIntosh Battery and Optical Co. : Sirs.— Will you please send me catalogues of your Stereoptlcon and Microscopic Appar- atus. I have used one of your Ether Saturators for two years and never have failed to get satisfactory results. On the night of election I threw the returns on the front of a building across the street for six hours without refilling the Saturator once, and do not know how much longer it would have lasted, as we tired out before that did. I used three large bags of gas. Yours, I. T. DOUST. 24 E. Genesee St., Syracuse, N. Y. Franklin, La., August 18, 1888. Dr. McIntosh: Dear Sir— Please mail to me your latest catalogue of Lanterns, Saturators and Views. I trust you are doing very well in your business. You deserve success, for you are always at work Inventing or improving. My jets and saturator and bag I bought from you nearly three years ago are as good as new yet. I experience no difficulty In working the dissolving lan- terns with the Ether-oxy light by myself, and lecture at the same time. |Thls is surely praise for your apparatus, and only the truth. I hope you are making improvements in the Satu- rator, in jets and lanterns, and am anxious to see your very latest cuts and circulars. Hoping to hear from you, I am, as ever, yours REV. A. F. CLAY.