The study of the human teeth accidentally took up his attention through the breaking of one of his own, and he engaged himself as pupil to the famous Dr. J. Hunter. The profession of dentist was the occasion of first introducing him to the notice of the public; and so successful was he in this art, that for a complete set of teeth he has received the enormous price of eighty guineas! We have heard of a lady who was dissatisfied with teeth for which she had paid him ten guineas; upon which he voluntarily returned the money: scarcely had she slept upon the contemplation of this disappointment, before she returned, soliciting the set of teeth, which he had made her, as a favour, with an immediate tender of the money which she originally paid, and received them back again. After many years successfully figuring as a dentist, Martin Van Butchell became no less eminent as a maker of trusses for ruptured persons. A physician of eminence in Holland having heard of his skill in this practice, made a voyage for the purpose of consulting him, and was so successfully treated, that, in return for the benefit received, he taught Martin Van Butchell the secret of curing fistulas; which he has practised ever since in an astonishing and unrivalled manner. The eccentricities of Martin now began to excite public notice; upon his first wife's death, who, for the great affection he bore towards her, he was at first determined never should be buried; after embalming the body, he kept her in her wedding clothes a considerable time, in the parlour of his own house, which occasioned the visits of a great number of the nobility and gentry. It has been reported, that the resolution of his keeping his wife unburied, was occasioned by a clause in the marriage settlement, disposing of certain property, _while she remained above ground_: we cannot decide how far this may be true, but she has been since buried. He has a propensity to every thing in direct opposition to other persons: he makes it a rule to dine by himself, and for his wife and children also to dine by themselves; and it is his common custom to call his children by whistling, and by no other way. Next to his dress and the mode of wearing his beard, one of the first singularities which distinguished him, was walking about London streets, with a large Otaheitan tooth or bone in his hand, fastened in a string to his wrist, intended to deter the boys from insulting him, as they very improperly were used to do, before his person and character were so well known. Upon the front of his house, in Mount-street, he had painted the following puzzle: BY HIS MAJESTY'S