CONTENTS 
OF THE FIFTIETH VOLUME. 
SOME new Researches on Flame. .. «2 «2 oF 38 
Mer etertal Napisalinne cs.” 5s). 4900 RaW Nee) ine eked 
Remarks on Sir RicHarp Paaepane s New Fy = eiaia 35 
New Outlines of Chemical Philosophy. .. .. «- «+ 38 
Extract of a Letter from Colonel Mupex to Wit.1aM Biack- 
woop, Esq. relative to the Trigonometrical Survey. .. 40 
Experiments on Vegetation, tending to correct some erroneous 
Opinions entertained et the Effects gf de ang on 
se Atmospheres + oi) ae fOds a ee ik}, 0) eieey Rae 
Geological Queries to Mr. Waardsaen Bansines Mr. Worcs, 
Mr. Fryer, &c. regarding the Basaltic and other Strata of 
Northumberland and Durham, &c. .. «2 «2 «. 48 
Report of the Select Committee appointed to consider of the - 
Means of preventing the Mischief of Explosion from hap- 
pening on board Steam-boats, to the Danger or Destruction 
of His Majesty’s Subjects on board such Boats. 50, 83, 167, 
243, 327 
On the Cause of Elling and Flowing Springs. Sick: || 
Further Considerations on the Doctrine that the Phenomena of 
Terrestrial Gravitation are occasioned by known Terrestrial 
Motions. ee ee . ee ee ee oe ee 101 
On the Oxi-hydrogen Blow-pipe. Ape ey rere eee egal 
On the Steam-Vessel aa to be emplo ye between London 
and Exeter. .. Sv asist beeen lite SL tnt ath deat dth's (kL S 
A Mathematical Ousstion. sr) Ae el Ae state es, 6 LS 
On the Case of Injustice which ates Saas suffer from 
other Writers, and from Annotators ; particularly the late 
Mr. Joun Wittiams, Author of the “ Mineral Kingdom’? 116 
Vol. 50. No. 236. Dec. 1817. a _ On 
