is the front contact point insulated from the base, | being inside the ram, thus giving a central thrust. and the adjusting screw of the base. The rear end |The saddleis self-acted either way along the bed by a slotted disk, connecting rod catch, and cast steel wheels, the screw being locked and… … OBJECT LENS FOR TELESCOPES AND CAMERAS, BELT’S TELEGRAPH KEY AND SOUNDER. Ce Better Pyrometers Needed. produce a stereoscopic effect in the picture. The lens the binding posts for the finger key, which are con- At a recent general meeting of the German Union of is of compound or double form, each…
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