Vol. 50. Philosophical Magazine. December 181 



Contents of Number 236. 



LXVI On a volatile concrete Oil existing in the Nut-galls of 

 'the Oak By Dr. Jos. Branch,, Professor of CJiemistry m the 

 .Imperial and Royal University of Pisa. Contained ma Letter 

 IfrZDr Branchito Sig. R. Gerbi, Professor rf Theoret^^l| 



I Physics. - - ," „"cx/rtjli 



LXVII. On the Atomic Theory. An Extract of M. H. 



'Gaultier de Claubry, from the '» Journal de Physique" for 

 May ISn' page 392. Translated, with Remarks, by W. B. 406 



' LXVIII. On the Ring of Saturn. By Count LaplacS. 409 



i LXIX An easy, simple, and infallible, Method to force 



every Fruit.Tree to'blosso'm and to bear Fruit, translated from 



the German of the Rev. George Charles Lewis HEMPEL(be- 



,cr:tS;To'^e Pomological Society of Altenburgh m Saxony 



iby George Henry NogHDEK.L.L.D.F.L.b. &c. *ii 



I LXX. On the Resistance of Solids V^-*l};^''fetlr V"- 

 Iciiic Cohesion and the cohesive Force of BoSies. By Mr. Iho^ 



MAS Tredgold. - - ' ' -r 1. r. 1 V 



: LXXI. Some further Observations on the Use of the Colchi- 

 ^umautumnaleinGour. By Sir E. Home, Bait., V.P.R.b.4-5> 

 LXXII Experiments and Observations uporn the State ot the 

 Air She Fever Hospitals of Cork, at a- Time when they were 

 ^owckd w th Patients labouring under Fcbnle Contagion ByL 

 EnMU.n Davv, Esq. Professor of Chemistry, and Secretary to 

 the Cork Institution. - - " " . |^ 



LXXIII. Upon the Extent of the Expansion and Contractor , 

 of T mber in different Directions relative to the Posu.on of A^T 

 Medulla of the Tree. ^By Thomas ^no^^w Knigh r^ E«1^ 

 F R .^. In a Letter addressed to the Right Hon. bir JOb£?^ 

 Banks, Bart. G.C.B.P.R.S. - ' 1 



LXXI V. On. the Nautical AWnac for 1820. - ■ ** 

 T V W ProsDCctus of a new System of Beaconing. By H 



Great Queen.Strset, London. - * * i 



• LXXVl. Notices respecting New Books. - * ^ 



LXXVI I. Proceedings of Learned Societies. - -^ ^' 

 T VVVTTT Intellieence'and Miscellaneous Arttcles:--Safet 

 LamoC^nLe?'; -Steam Engines in Comwall.-VegetaUc 

 l.amp '-'^"^^^''''"•'^;,- ^^„i„~„ _lGeoloeY.— CEconomy of F\J' 



ZSg'^S^r^ orjl°?lLi£^ 

 ZSSes.lpiLnts.--MeteorologicalTables^.--fnde^x,^^^ 



^^3I»^TBiniTAri.(», r«|iTwt,»Hoi w»<,«^<^ 



