formers of the magnitude employed by the Niagara BY PROF, JOHN TROWBRIDGE. the wet terminals from two inches to four. The Some recent experiments in the Jefferson Physical Construction Company. The transformer I have de- deafening noise was probably caused by the explosion Laboratory show in a… … has several interesting features. ————(9+ oo ____—_ Fig. 1.—The Transformer. It consisted in the main of nineteen AN OPTICAL PYROMETER. In our various industries, accurate flat bobbins of fine wire slipped upon a means are provided for determining the different pro- used. Fig. 1 is a photograph of…
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