. as-lined Gas-Bag, 30x40x20 inches, 55 Gallons capacity; and Rubber Tubing for connections $ *** The addition of this will enable either of the Dissolving-View Apparatus, Nos. 640 to 644to be converted at any time into an Oxy-Calcium Stereopticon. No. 709. Oxy-Galcmm House Gas Attaoliment, TO THE DISSOLVING-VIEW APPARATUS, Nos. 640 to 644. Consisting of two improved adjustable Oxy-Calcium Jets, adapted to burneither House Gas or Alcohol, with clamping and elevating Screws for Lime Cylin-ders ; compound Dissolving Key ; copper O
. as-lined Gas-Bag, 30x40x20 inches, 55 Gallons capacity; and Rubber Tubing for connections $ *** The addition of this will enable either of the Dissolving-View Apparatus, Nos. 640 to 644to be converted at any time into an Oxy-Calcium Stereopticon. No. 709. Oxy-Galcmm House Gas Attaoliment, TO THE DISSOLVING-VIEW APPARATUS, Nos. 640 to 644. Consisting of two improved adjustable Oxy-Calcium Jets, adapted to burneither House Gas or Alcohol, with clamping and elevating Screws for Lime Cylin-ders ; compound Dissolving Key ; copper Oxygen Retort, with Stand, ArgandSpirit Lamp, Purifier, india-rubber Tubing, and canvas-lined Gas-Bag, 30x40x20 inches, 55 Gallons capacity; and Rubber Tubing for connections $ *** The addition of this will enable either of the Dissolving-View Apparatus, Noe. 640 to 644,?o be converted at any time into an Oxy-Calcium House Gas Stereopticon. ^ 31 Geo. H. Pierce, Philadelphia, Pa. INSTRUCTIONS FOR OPEEATINa THE DISSOLVING VIEW APPARATUS. Nos. 640 to DISSOLVER. Place the Apparatus, and arrange the Lenses and Lamps, as described onPage 33 The Lanterns being mounted on the Platform lid of the packing-case, eachfixed on its pivot in front, incline both Lanterns apart at the rear to such anangle that the circle of light from each shall fall precisely upon the same space on theScreen. There is in front of the pair of Lanterns a Metal Dissolver—which isindicated by the dotted line in the engraving on pagp 30 *nd is more distinctlyshown by the illustration on this page. This Dissolver slides in a groove, and is soproportioned that when the wide part of the diamond-shaped opening is in front ofthe Tube of one Lantern, the pointed end will not quite reach to the front of theTube of the other Lantern. Having placed a View or Slider, in each Lantern, slidethe Dissolver along the groove by the hand, alternately from right to left, and leftto .right; and it follows, that as soon as
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectproject, bookyear1888
