Louis III, King of Provence; Boleslas III, Duke of Bohemia; Magnus IV, King of Norway, and Bela II, King of Hungary, were blind.

Nathaniel Price, a librarian of Norwich in the last century, lost his sight in a voyage to America, which, however, did not interfere in any degree with his duties, for his books were in as good condition and their location as directly under his knowledge, during his blindness as they were in his earlier days.

At the present day in New York there is a blind billiard expert who occasionally gives exhibitions of his prowess.
Feats of Memory .-- From time to time there have been individuals, principally children, who gave wonderful exhibitions of memory, some for dates, others for names, and some for rapid mental calculation.
Before the Anthropological Society in 1880 Broca exhibited a lad of eleven, a Piedmontese, named Jacques Inaudi.

This boy, with a trick monkey, had been found earning his livelihood by begging and by solving mentally in a few minutes the most difficult problems in arithmetic.

A gentleman residing in Marseilles had seen him while soliciting alms perform most astonishing feats of memory, and brought him to Paris.