and is simultaneously marked INSTRUMENT. on the paper. The line drawn by the pencil is always proportional to the distance moved through by the The instrument illustrated in the accompanying pictures is an exceedingly ingenious one. It was in- end of the telescope, as the angle described by the… … Method. wishes to draw accurately in perspective landscapes, Prof. A. Zamboni (Hlettricité, No. 4, 1903) has buildings, or objects of any sort. succeeded in obtaining aluminium, sodium, potassium, purified, not only from inamalgamable bodies, but as etc., amalgams, decomposable in water. His method…
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