Transactions . show there is butslight difference between the unsymmetrical ends); (3) annularfields (of which there is but one example, namely, Fig. 7); (4)cupped fields (illustrated by Figs. 4, 5, 6 and 15), in which thewhole field is strongly magnetic, but portions are so extremelydense as to give the appearance show^n in the diagrams. INVES l I-. \ I [ONfi I M \(.\ l I h in LDS. n:;. I Cones with Bounded Points. Semi-ingle 46°. Pole-distance, 2 in.
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries