IN his Herbert Spencer lecture of 1907, Sir Francis Galton outlined a suggested course of “Object-lessons in the Methods of Biometry,” adapted to persons with no mathematical knowledge. The course was to consist of five lessons, the first to introduce the learner to the idea of variability and the median, the second to deal with the scheme of distribution (the ogive curve), the third with deviations from the median, the fourth with frequency curves (including the arithmetic mean and the standard deviation), and the fifth with correlation.
A Primer of Statistics.
By W. Palin Elderton Ethel M. Elderton. Pp. viii + 86. (London: A. and C. Black, 1909.) Price 1s. 6d. net.