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CURRENT TOPICS.
[J. F. I.
results are confirmed at different places, then all our theories go into the melting-pot, relativity and all, and a patient resurvey must commence to unravel afresh order from chaos. The only grave mistake we can make at present is to treat Miller's results otherwise than seriously."
(5) The Chicago rotation experiment, in which two rays of light were sent around the same path but in opposite directions. The results are equally in accord with the relativity theory and with the theory of a stagnant ether, but they are in opposition to Miller's suggestion that the earth drags 95 per cent. of the ether with it while 5 per cent. of it slips by. Be it noted that the fact of Miller's observations are quite apart from his suggested, explanation of them.
Thus for the theory of relativity are the motion of the perihelion of Mercury, deviation of rays near the Sun and shift of spectral lines. Against it stand Miller's results, while the Chicago rotation experiment holds a neutral position.
๐ SIMILAR VOLUMES
In each test a series of pans containing known numbers of larvae were distributed over the area to be dusted. Counting the living larvte after dusting furnished a check on the effectiveness of the application. Two final-tests gave particularly clear-cut results, and for this reason were of special
work of Maxwell and on the experimental work of Hertz. This tribute to the latter was not relished by Ludwig Boltzmann, who rose and took exception to parts of the address, it seems that the physicists of Germany were not too well acquainted with the fundanlental work of Maxwell and that Hertz wrote