rOL. L.J PHILOSOPHICAL TRANSACTIONS. 15/ 



XLIIL An Extract from the Register of the Parish of Great Shefford, near 

 Lamborne in Berkshire^ for Ten Years : with Observations on the same. By 

 the Rev. Mr. Richard Forster, Rector of Great Shefford. p. 356. 



From Lady-day 1747, to ditlo 1757, baptized, males 73, females 75; in 

 all 148. 



Buried, males 44, females 39 ; in all 83. 



The number of people 425 ; the number of houses QO ; the number of acres 

 2245, of which \ is waste. 



XLIV. A Remarkable Case of an Aneurism^ or Disease of the Principal Ar- 

 tery of the Thigh, occasioned by a Fall. To which is prefixed a Short Ac- 

 count of the Uncertainty of the Distinguishing Symptoms of this Disease. 

 By Jos. fVarner, F. R.S. p. 3(33. 



[This case may be consulted in this author's tracts published in 1760, under 

 the title of Cases in Surgery.] 



XLV. Further Experiments for Increasing the Quantity of Steam in a Fire- 

 Engine. By Keane Fitzgerald, Esq. F. R. S. p. 370. 

 Mr. F. here, on further experiments, retracts an account he before gave in 

 N*' X of this 50th vol. and then proceeds. In order to try what difference the 

 air passing through a thinner body of water might occasion, he brought the ho- 

 rizontal pipe, which was placed 12 inches under the surface of the water, to 

 within 6 inches ; and found on setting the engine to work, that the leaden pipe 

 for the conveyance of air from the bellows into the boiler, became much hotter 

 than he had perceived it before ; which could not happen if a constant cool air 

 had passed through : and on shutting the cock, which was fixed in the leaden 

 pipe to hinder the steam from ascending into the bellows before the engine 

 should be set to work, though no air could then possibly" pass through, yet the 

 bellows still continued to move with the same regularity as before ; which, on 

 examination was found defective on the inside, where the middle board that di- 

 vides the two bodies, was warped and cracked in several places, through which 

 the air passed very regularly from one body to the other at each stroke, instead 

 of passing through the pipe into the boiler as imagined. By this the cause of 

 deception was evident ; which he was still in hopes of remedying, by having a 

 new pair of bellows made somewhat larger, and much stronger. When this 

 was fixed and the engine worked a few strokes, he was surprised to find the bel- 

 lows did not come down, but remained fully charged with air, though it had 

 400 lb. weight upon it ; and that on increasing the weight gradually to 1400 lb. 

 which was as much as the bellows could support, the air was not forced through. 



