VOL. LXIX.] PHILOSOPHICAL TRANSACTIONS. 477 



wonderfully strengthened, and from this time she continued mending to a state 

 of perfect health. Every time she was electrified positively, her pulse quickened 

 to a great degree, and an eruption, much like the itch, appeared in all her 

 joints." 



Thus far Mr. Underwood. To complete the history of this singular case. 

 Dr. F. Oct. 28, 1778, rode several miles, on his return from the country, to 

 visit her ; and had the satisfaction to find her in good health, and the above 

 account verified in every particular, with this addition, that at the beginning of 

 the disease she had but slight twitchings, attended with running, staggering, 

 and a variety of involuntary gesticulations which distinguish the St. Vitus's 

 dance, and that these symptoms were afterwards succeeded by convulsions, 

 which rendered it difficult for 1 assistants to keep her in bed, and which soon 

 deprived her of speech and the use of her limbs. The eruptions which ap- 

 peared on the parts electrified soon receded, without producing any return of 

 the symptoms, and therefore could not be called critical, but merely the eflfect 

 of the electrical stimulus. Having given her parents some general directions as 

 to her regimen, &c. he took his leave, with a strong injunction to make him 

 acquainted in case she should happen to relapse. Dr. F. adds that some time 

 before, he was fortunate enough to cure a boy who had long had the St. Vitus's 

 dance (though in a much less degree) by electricity. A violent convulsive 

 disease, somewhat similar to the above, though he thinks not attended with 

 aphonia, was successfully treated in the same way by Dr. Watson, and is re- 

 corded in the Phil. Trans. May we not then conclude, that these facts alone, 

 and more might perhaps be produced, are sufficient to entitle electricity to a 

 distinguished place in the class of antispasmodics } 



J J. A Case in which the Head of the Os Humeri was sawn off, and yet the 

 Motion of the Limb preserved. By Mr. Daniel Orred, of Chester, Surgeon. 

 p. 6. 



This case (as Dr. Perceval, by whom it was communicated, remarks) affords 

 a confirmation of an important fact, inserted in Phil. Trans, vol. 5Q, and shews 

 that the chirurgical improvements there proposed by Mr. Charles White, may 

 be extended to operations on other parts of the human body. But as this ac- 

 count, in all the leading circumstances of the case, as well as in the mode of 

 operation, coincides with that of Mr. White, which may be perused in that au- 

 thor's Cases in Surgery, 8vo. 1 7fO, it appeared unnecessary to print it Ijere. 



HI. Experiments on some Mineral Substances, By Peter JVoulfe, F. R. S. p. 11. 

 Omitted for the reason assigned at p. 120, vol. 14, of these Abridgments. 



