bited. These BY GEO. M. HOPKINS. The lens, B, next the object is nearly a hemisphere, spirals are shown in Fig. 6. IV. In Fig. 7 is shown the figure produced by the inter- about eleven-sixteenths in. in diameter and three- The only simple device for exhibiting the rings and position of a quarter… … arranged like the ana- Niter is shown in Fig. 3 as it appears when the analyzer is crossed. With the an- LONGITUDINAL SECTION OF yZef' POLARISCOPE FOB EXHIBITING WIDE-ANGLED CRYSTALS. alyzer parallel with the polarizing plate, the TUBES OF POLARISCOPE. Inventors. Boy dark brushes are replaced by…
Contained · Munn · Patented · Patents · Scientific American · Oil · Torpedo boat · Pig iron · American supplement · Cast Iron · Compressed air · Torpedo boats · Making ready · Address munn · Letters patent
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