Nature . 68 CORNHILL, LONDON, E.C-. Eu-r,ived Real size,AN ACHROMATIC COMBINATION, COMBINING THE DEFINITION OF A MICROSCOPE WITH THEPORTABILITY OF A POCKET LENS. If you carry a small Platyscopic Pocket Lens (which
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UTZSCHNEIDER & FRAUNHOFER TELESCOPE | BADA
Diagram of Theodolite telescope. I am unsure if this is the main telescope, or the secondary telescope. Though this diagram dose s… | Theodolite, Diagram, Telescope