566 PHILOSOPHICAL TRANSACTIONS. [aNNO 1755. 



X. Extracts of two Letters from Mr. James Latterman, Student in Physic and 

 Surgery, to Dr. Schlosser, concerning the Effects of the Jgaric of the Oak, 

 To which are added some rt-marhahle Experiments made on the Arteries of 

 Horses, with the Powder of the Lycoperdon, or Lupi Crepitus. Bij M. La 

 Fosse, Farrier to the King of France. Communicated by Mr. Joseph IVarner, 

 F. R. S. Surgeon of Guys Hospital, p. 36. 



[In these letters some additional cases are given of the successful application 

 of iigaric as a styptic after surgical operations. Also, of the application of the 

 lycoperdon, with similar success. After the several cases of this kind, related in 

 the preceding numbers of these Transactions, it is deemed suj^erfluous to reprint 

 the detail of these additional experiments, especially as the surgical practitioners 

 of the present day are agreed, that for stopping haemorrhages from the larger 

 arteries, the ligature alone is to be relied on.J 



Respecting the manner in which these vegetable styptics act on the mouths 

 of the bleeding vessels, Mr. La Fosse observes First, that when applied to the 

 mouths of the divided arteries, the bleeding has ceased in a few minutes, and 

 that the mouths of the divided arteries have healed up without any further dis- 

 charge. Secondly, that in 24 hours after the application of this powder, a thin 

 pellicle or skin is formed on the mouths of the divided arteries, and that within 

 the vessels is found a small plug of congealed blood. Thirdly, that the pulsation 

 of the artery is to be seen in a very distinct manner at the extremities of the 

 vessels. Fourthly, that the coagulated blood is of a conical figure, whose basis 

 is at the mouth of the vessel, and its apex in an opposite direction. 



XL On the Use of Lycoperdon, in Stopping Blood after Amputations.* By 

 James Parsons, M. D., F. R. S. p. 38. 



XIL The State of the Thermometer, Feb. 8 and g, 1755. By Henry Miles, 



D. D., F. R. S. p. 43. 



The cold on the 8th, especially at midnight, was extraordinary, if it be con- 

 sidered in how short a space of time it increased to that degree. The lowest 

 state of the thermometer, was on the 8th day, at 7^ a. m. when it had fallen 



to in- 



XHL Some Cases of Dropsies, cured by Sweet Oil. By Wm. Oliver, M. D., 



F. R. S. p. 46. 



Mr. Pierce took from Miss 1 1 pints of water. As soon as the bandage 



could be loosened, Dr. Hartley and Dr. O. examined the state of her belly. The 



• Not reprinted for the reason assigned in the remark affixed to the preceding paper. 



