VOL. XXXVir.] PHILOSOPHICAL TRANSACTIONS. 575 



attended this mode of treatment, to the corporation of surgeons in London; 

 and in 1732, Mr. R. was informed by Mr. Amyand that, after his example, 

 he had employed the Peruvian bark in 7 cases of mortification, with similar 

 good effect. Mr. Rushworth was also informed by Mr. Douglas, in a letter 

 dated July 5, 1732, that he, in consultation with Mr. Dickins and Mr. 

 Cheselden, had succeeded with the same remedy in a mortification of the foot 

 from an internal cause, occurring in a man 50 years of age. These facts were 

 published by Mr. Rushworth in a small tract expressly written on this subject. 

 After this notice of Mr. Rushworth's publication, Mr. Shipton proceeds to 

 eive an account of 2 cases of mortification which he attended. In one of these 

 from an internal cause, the Peruvian drug was of no avail; but in the other, 

 in which the mortification was the consequence of a lacerated wound, occasioned 

 by a fowling piece going off while the person was drawing out the charge, it 

 effectea a cure. In these cases Mr. S. gave the bark in powder, viz. 2 scr. 

 every 4 hours at first, and afterwards at longer intervals. He remarks, that 

 where the powder in such doses should be nauseated by the patient, the resin 

 or extract administered in half the quantity might prove equally efficacious. He 

 further adds, that from what he had experienced respecting the medicinal 

 powers of the bark in cases of mortification, he was led to expect that it would 

 prove extremely beneficial in certain ill-conditioned ulcers termed noma; and 

 phagedaenae, and perhaps also in malignant kinds of herpes.* 



Some Corrections and Amendments to the Natural History of the Insect called 

 Coccus Radicum. By J. P. Breyne, M. D. F. R. S. N° 426, p. 444. 



In Dr. Breyne's Natural History of the Coccus Radicum, when after many 

 repeated observations and experiments, he had given an account of the gene- 

 ration and metamorphosis of that insect, which uses to stick to the extremities 

 of the roots like a spherical grain, and is commonly called coccus polonicus, he 

 conjectured, that those small flies which are often found among the coccus, did 

 not belong to the coccus, but owed their rise to small worms of their own kind, 

 and were accidentally found among the coccus; and as he could not find any 

 difl^erence of sex among the worms of the coccus, and following chiefly the 

 opinion of Signer Cestoni concerning the coccus of the ilex, he ventured to 



* Mr. Rushworth's pamphlet above alhided to was published in 1731, under the title ofa Proposal 

 for the Improvement of Surgery; from which it appears that the merit of first applying the Peruvian 

 bark to the cure of mortitications is due to a British practitioner. Many years afterwards it was shown 

 by Mr. Pott, that the cinchona is rendered much more efficacious in such cases by combining it with 

 opium. 



