CONTENTS 



OF 



THE QUARTERLY JOURNAL, 

 No. XVII. 



Art. P«§e 



I. Original Journal of an Excursion from St. Thome de 

 Angostura, in Spanish Guayana, to the Capuchin Mis- 

 sions of the Caroni. With a Map of the Author's 



Route ^ 



il. Remarks on Laplace's latest Computation of the Den- 

 sity and Figure of the Earth 32 



III. Geological Description of the Hills which pursue the 

 Course of the Wye, from Ross to Chepstow, with Re- 

 marks upon the Characteristics of the Herefordshire 

 Formations, and an Outline of the Stratifications of the 

 Forest of Dean, and the opposite Shores of the Severn. 



By John Fosbrooke, Esq 35 



IV. Description of the Silures, or Catfishes, of the River 

 Ohio. By C. S. Rafinesque, Professor of Botany and 

 Natural History in the Transylvania University of Lex- 

 ington, in Kentucky 48 



V. On Fluidity ; and an Hypothesis concerning the Struc- 

 ture of the Earth 52 



VI. A Letter from Captain William Spencer Webb, 

 containing an Account of his Journey in Thibet, and Pil- 

 grimage to the Temple of Kedar Nat'h. Communicated 



by H. T, COLEBROOKE, Esq (Jl 



VII. On the Manufacture of British Opium. By the Rev. 



G. SWAYNE 69 



VIII. On the Variation of the Compass, observed in the 

 late Voyage of Discovery to the North Pole, under Capt. 

 Buchan. By George Fisher, Esq. 81 



