Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 104
on the less deflected side, as they should, con-sidering the actual shape of MN, which was a circular cylindercentered at P. An enlarged reproduction of such traces is given inFig. 2 (a). The double character of these long traces is evident,but they are not well enough defined for accurate… … Actual width of fields is 2.0 cm. 90 L. \V. McKeehan. U- F- I by pin-hole photographs was found to be a brilUant annulus witha relatively non-emitting centre. The two pairs of parallel pro-jections indicated in Fig. i give rise in the film to two verynearly similar elliptic bands, the ratio of the…
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