t case is made surface of the cap, tached a mouth or nose piece, the latter being partly revoluble, and arranging in these rings auxiliary lenses as shown in the shown in Fig. 3. The nose and mouth piece are inter- of cylindrical form adapted to compensate for the small view, while cylindrical… … vessels, as shown in one of the small views, which are ASTIOMATIC ETEFIECE FOE OPTICAL INSTBUMENTS. TATA'S BESFIBAGBAPH. in communication with the interior of the tube. They It is a remarkable fact, not generally known to per- are designed to collect the rain, dew, or other moisture, sons…
Valve · Patents · Pipe · Contained · Scientific American · Iron · Express money · Wooden box · Horse power · Takes place · Gutta percha · Gas engine · Zinc plate · Carbon plates · Twelve hours
Internet Archive · Public domain (published before 1931). Free to use for anything.
![An illustration from The Telegrapher [microform] (1864)](https://img.insideoutlibrary.com/img/200/ia-telegrapher05nati-320-204.webp)
