INDEX 
TO THE 
PHILOSOPHICAL TRANSACTIONS 
FOR THE YEAR 1798. 
A page 
A.bernethy, Mr. John. Observations on the Foramina The- 
besii of the heart, - - _ _ - 103 
Acid lithic , remarks on, 
Adularia , specific gravity of. 
Astronomy , physical , improved solution of a problem in, 
Atmospherical refraction, singular instance of, - . ^ 
Atwood, George, Esq. A disquisition on the stability of ships, 201 
*9> 34 
412 
5 2 7 
357 
B 
Barker, Thomas,- Esq. Abstract of a register of the barometer, 
thermometer, and rain, at Lyndon, in Rutland, for the year 1 796, 1 30 
Barometer, register of, at Lyndon, in Rutland, - _ 130 
Beam-compass, description of one, - - -137 
Bezoar , Oriental , remarks on, - - - 46 
Bird. Mr. John. Account of some scales made by him, 137, 170, 177 
Bouguer , M. Remarks on some opinions of his, - 242 
Bo ur non. Count de. An analytical description of the crystalline 
forms of Corundum, from the East Indies, and from China, 428 
Brougham, Henry, Jun. Esq. General Theorems, chiefly Po- 
ri sms, in the higher geometry, - _ - 37 8 
— — *' — 7 — ; — — Remarks on his opinions re- 
specting light, - 
3*2 
