Beck, Conrad, 1864- · London, R. & J. Beck, Ltd. · leaf 51
s are notused. For those who have not gasor electric light, but who requirea more powerful light than aparaffin lamp, an extremely use-ful lamp, which is quite simpleto use and gives excellent re-sults, consists of an incandescentmantle heated by a methylatedspirit flame. The reservoirhaving been… … Fig. 41.—No. 3337.
Microscopy
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