We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
MCINTOSH BATTERY AND OPTICAL CO., CHICAGO, ILL., U. S. A. 41 SOLAR MICROSCOPE and STEREOPTICON COMBI N A T I ON. DESCRIPTION OF SOLAR COMBINATION. i^is a frame of wood fastened in an open window. M f the mirror attached to the frame on the outside of the window. RR, Rods which work the mirror on a ver- tical and horizontal axis by means of spur-wheel gears. V, Thumb-wheel, which turns the mirror vertically. /F, Thumb-wheel, which turns the mirror horizontally. A, Stage, through which the slide holder is passed when the Stereopticon lens is employed. «, s, Spring clips, which hold the slides when the Microscope Attachment is employed C, Brass cell, holding the condensers. B, Brass collar supporting the tube E. E, Sliding tube for changing the focal di tance between the condensing lens and the objectives. K, Microscope attachment. (The cut of the Combination Stereop- ticon, on preceding page, shows the same front with a Stereopticon lens.) 0 , Objective. N, Secondary Condenser, which is inserted in the sub stage ring of microscope. C, Screw for coarse adjustment. /, Screw for fine adjustment. b, Screw which fastens the microscope on its stand S. T, Microscope tube, with eye-piece. L, Stereopticon Lens. S, Microscope Stand. M, Mirror. PRICE of Solar Microscope and Stereopticon complete, as follows: One large adjustable Mirror, for reflecting sunlight through the con- densing lens; one 4Condensing Lens, set in large polished brass tube, with draw tube and space in large tube to receive the Stere- opticon slides ; one Secondary Condenser; one Stereopticon Objec- tive, with two achromatic combinations, for high and low power; one Solar Microscope; one Stand and Draw Tube, to use the Solar as a monocular; one A and C eye-piece, iy 2 inch and l inch first-class Microscopic Objectives $200.00 McIntosh Combination Stereopticon, without optical part, with first- class adjustable jet for mixed gases $50.00 To employ the brass front of the McIntosh Stereopticon for Solar Projection, it is necessary to remove the condenser next the light, using only one condensing lens with the stereopticon lens L. For