which the image given other arm is adapted to engage the ratchet, when the the ray to a sec- upside down near the objective must be righted by device is adjusted to hold the clothes, the ratchet and ond prism, B, ca- means of supplementary lenses, is always quite cum- I Fig. 1.-PASSAGE OF THE RAYS… … Fig. 3.-1. be carried out with- 3. The field glass closed. 3, Observation from The field glasB open, Fig. 2. tions it rapidly loses Observation from behind a wall. behind a tree. 4. out too great de- the advantage of lay. THE ZEISS STEREOSCOPIC FIELD GLASS. being shorter, since, ) 1897 SCIENTIFIC…
Patents · Portland · Locomotive · Adapted · Scientific American · Inventor · Declination north · Unity point · Horse power · American locomotive · Square feet · English locomotive · Torpedo boat · Portland cement · Stereoscopic field
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