CONTENTS 



OF THE 



SEVENTEENTH VOLUME. 



r. ON' the Mod'tfications of Clouds, and on ihe Principles 

 of their Production^ Suspension, and Destnation ; leina 

 the Substance of an Essaij read before the Ashesian Societ-i/ 

 in tlie Session 1802-3. Bi/ Luke Howard, -E^^. Page 5 



IT. Account of the Kctokies or Lunctns : ivr it t eji bij Jon ^ 

 Macrae, Esq. and communicated to the Asiatic Societij 

 b\j J. H. Harrington, Esq ; 11 



HI. An Essay on the Fecula of Greeii Plants. By Pro- 

 fessor Proust 22 



IV. Account of a Joairney to the Summit of the Peak of 

 Teneriffe: in a Letter from L. Cordier, Engineer of 

 Mines, to C. Devilliers, junior - 31 



V. On Mr. Arthur Woolf's improved Apparatus, ap- 

 plicable to Steam Engines and other Purposes of Art and 

 Manufacture : including a Description of two Boilers itoii^ 

 erecting at Messrs. Meux's Bravery 40 



Yl. On the Motion of Bodies affected by Friction. By 

 the Rev. Samuel Vince, A. M. of Ccmibridge .... 47 



Vil. Observations on the Process of Tanning. By HuM- 

 I'HREV Davy, Esq., Professor of Chemistry in the. Royal 

 Institution 58 



Vni. An Account of some Experiments and Observations 

 on the constituent Parts of cerfai?i astringent Vegetables ; 

 and on their Operation in Tanning. By Humphrey 

 Davy, Esq. Professor of Chemistry in the Royal Insti- 

 tution 63 



IX. Extract from the third Volnme of the Analyses of 

 M. Klaproth 76 



X. Analysis of Ambergris. By Bouillon-Lagrange S8 

 XI; Proceedings of Learned and Economical Societies .. 92 



XII. Intelligence and Miscellaneous Articles 94 



XIII. Essay on the Franklinian Theory of Electricity. By 

 Samuel Woods, Esq. Read before the Askcsiun Society 

 in the Session 1 802-3 97 



XIV. On the Motion of Bodies affected by Friction. By the 

 Rev. Samuel Vince, A. M. of Cambridge 113 



XV. Copy of a Letter to the Rev. Samuel Vince, Plumian 

 Professor of Astronomy, &^c. &^c., Cambridge, from 

 .John Southern, Engineer, dated Binniughun/., Junu- 



arif 1 9, J 801 It'O 



Vol. XVJI. No. Ce. a XVI. On 



