“A Letter to the Right Honourable George, Earl of Macclesfield, President of the Royal Society, as to the Advantage of taking the Mean of a Number of Observations in Practical Astronomy.” In Philosophical Transactions, Volume 49, pp. 82-93, 1755.
No offprints are known to exist. The original volume, in contemporary full calf, firmly rebacked, with black and red leather labels. The practice of taking the average of a number of observations is rooted in antiquities. However, a mathematical proof that the average is nearer to the truth than any.....