Cavendish never changed the fashion or cut of his dress, so that his appearance in 1810, in a costume of sixty years previously, was odd, and drew upon him the notice which he so much disliked. His complexion was fair, his temperament nervous, and his voice squeaking. The only portrait that exists of him was sketched without his knowledge. Dr. George Wilson, who has left a clever memoir of Cavendish, says: "An intellectual head, thinking--a pair of wonderful acute eyes, observing--a pair of very skilful hands, experimenting or recording, are all that I realize in reading his memorials."
It would be an acquisition to our knowledge if some one competent to the task would collect materials for the history of the men who, within the present century, have made a profession of _judicial astrology_. Attention is occasionally drawn to the practices of itinerant fortune-tellers, many of whom still procure a livelihood. The astrologer, however, or, as he is denominated in some districts of England--more particularly in Yorkshire--a "planet-ruler," and sometimes "a wise man," is of a higher order. He does not itinerate, is generally a man of some education, possessed of a good deal of fragmentary knowledge and a smattering of science. He very often conceals his real profession by practising as a "Water Doctor" or as a "Bone-setter," and some possess a considerable amount of skill in the treatment of ordinary diseases.
The more lucrative part of his business was that which they carried on in a secret way. He was consulted in cases of difficulty by a class of superstitious persons, and an implicit faith was placed in his statements and predictions. The "wise man" was sought in all cases of accident, disaster, or loss. He was consulted as to the probabilities of the return and safety of the distant and the absent; of the chances of the recovery of the sick, and of the destiny of some beloved friend or relative. The consultation with such a man would often have a sinister aim; to discover by the stars whether an obnoxious husband would survive, or whether the affections of courted or inconstant lover could be secured. Very often long-continued diseases and inveterate maladies were ascribed to an "ill-wish;" and the planet-ruler was sought to discover who was the ill-wisher, and what charm would remove the spell. It is needless to say that the practices of these astrologers were productive, in a large number of cases, of much disturbance among neighbours and relatives, and great mischief to all concerned, except the man who profited by the credulity of his dupes.