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experiments with [[gr?]] screen and with clear [[image - pen drawing of small vase like vessel]] Ten experiments towards the smaller lights the mean was with [[grown?]] chimney 6.38 with clear chimney 6.47 --------[[par of ?]] 101.1 Exper to determine within the means of the disappearance of other spot on each end is the same spot of a single observation of equality of illumination [[end page]] [[start page]] [[in pencil]] 35 Exp. with vanishing of spot on different sides towards candle and towards lamp with gas companys photograph---- Turned to candle 7.02 Turned to Lamp 12.35 ----- 2/19.37 ------- average --- 9.68 Equal illumination on both sides 10.02 Ten experiments in each set of the above