Beck, Conrad, 1864- · London, R. & J. Beck, Ltd. · leaf 49
Fig. 37.—No. 3336, Electric Lamp on Stand. 46 THE MICROSCOPE Electriclamp. … Fig, No. 3332, Pointolite Lamp. class of illumination; and the Beck electric lamp is a convenient form whicli takes either kind of electric bulb. The lamp has adjustment so that the beam of light can be placed at any heightIG between 3 and 9 inches ,^ II above the level of the table. The stand (A)…
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