mp should bs drilled near the edge at equal enclosed in a suitable holder. A length of distances apart ; these holes are to admit small flexible wire is connected to the terminal screws. This plate should be screwed on the wires of the lamp. Upon connecting back of the holder so as to cover the… … Fie. 11, contain the fiexible is of the wire shown in Fig. 12c, plano - convex This wooden holder should be ebony stained or bull’s-eye type, and must be 14 inches in outside, and white enamelled inside to reflect diameter. If a proper lens is not obtainable, the light. the humble bull’s-eye glass…
The magic lantern - how to make slides · Wood carving for amateurs · Photography for amateurs · Stamps week by week · Pigeons for pleasure and profit · Bent iron work · Weekly presentation design · Photographic competition · Pocket electric reading lamp · Cycling and athletics · Prize competitions · Crocodile as a pet · Correspondence · Sale and exchange
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-501-222.webp)
