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x+a/n-1 = √ na[[superscript 2]] -a[[superscript 2]] +a[[superscript 2]] /(n-1)[[superscript 2]] x = a√n/n-1 - a/ n-1 = a(√n-1)/n-1 [[line]] April 10th weighing candle in the lower office 65 25 : 52 :: 60 : 125 30 : 62 :: 170 : 126 35 : 73 :: 60 : 125 40 : 83.5 :: 60 : 125 45 : 94 1/2 :: 60 . 126 50 106 :: 60 127 -------------------- 125 2/3 15 18 1 ---- 6)34 5 2/3 [[end page]] [[start page]] [[in pencil]] 19 [[image - ink drawing:flask with No 1 written in the bulb]] standard oil 58°=95 No 1 at 57 " [[ditto for: oil]] 95 " [[ditto for: No]] 3 " [[ditto for: at]] 52 " [[ditto for: oil]] 105 " [[ditto for: No]] 3 at 59 " [[ditto for: oil]] 93 No 1 has cork in the cockway holds very little more than two pints of water. Hole through which the liquid runs about 1/4 very nearly.