useful generalisation so far as it goes, but further information is required to enable the reader to obtain a correct idea of value. The generalisation is useful in regard to a mass of sales; thus we may say broadly, that in the last century the ordinary large and good libraries averaged about £1 per lot, while in the present century they average at least £2 per lot.
A small and select library will naturally average a much higher amount than a large library, in which many commonplace books must be included. These averages, however, will not help us very much to understand the relative value of libraries.
For instance, at the Sunderland sale some lots sold for enormous sums, while a large number fell for a few shillings; but at the Hamilton Palace sales (William Beckford and the Duke of Hamilton) nearly every lot was of value, and although individual lots did not reach the sums realised at the Sunderland sale, the total was much larger. As an instance of what is meant, we may quote from the notice of the Ashburnham sale in the Times—