new lamp, the design of which was lately imity. The centrary effect will, of course, be produced if New York city. brought before the physical section of the Moscow Society the resistance of the arc should diminish. An improved safety whiffletree has been patented by Mr. of Naturalists, and which… … is laid out in perspective scales, which can be utilized as wind, etc. These variations may, in fact, be greatly reduced guide lines for making a drawing at any angle to the hori- in the former description of lamp, and it is not necessary TCHIKOLEFF’S ELECTRIC LAMP. zon and vertical. with them to…
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