42 15.72 308.8 .2210 6.224 73.04 61.24 43 13.55 311.0 .2227 6.214 72.83 60.95 44 17.17 360.6 .2579 6.466 7477 61.00 45 17.27 364.2 .2606 6.537 75.30 61.39 46 14.68 403.3 .2886 6.719 76.71 61.30 47 9.70 432.8 .3097 6.841 77.66 61.13 48 15.35 433.8 .3104 6.866 77.85 61.28 49 10.10 448.8 .3221 6.936 78.36 61.22 50 8.60 466.7 .3340 6.978 78.67 60.85 51 8.26 470.7 .3368 7.024 79.02 61.04 52 16.95 498.5 .3568 7.210 80.40 61.36 53 12.61 551.3 .3945 7.470 82.19 61.13 54 9.03 587.8 .4112 7.661 83.73 61.18 55 10.11 591.5 .4233 7.672 83.82 61.22 56 4.46 614.2 .4396 7.777 84.57 61.11 57 7.74 619.7 .4435 7.774 84.54 60.87 58 9.070 620.2 .4439 7.810 84.63 61.14 Mean of all numbers in last column = 61.138 Mean of first 23 numbers = 61.120 [Pg 111] They represent a thirty-fold variation in (from .016, drop No. 1, to .444, drop No. 58), a seventeen-fold variation in the pressure (from 4.46 cm., drop No. 56, to 76.27 cm., drop No. 10), a twelvefold variation in (from cm., drop No. 28, to cm., drop No. 1), and a variation in the number of free electrons carried by the drop from 1 on drop No. 28 to 136 on drop No. 56. Fig. 7