ii CONTENTS. 
Art. IX. Account of a Map of the Tarout Shan Territory. By 
Francis Hamilton, M. D. F. R. S. L. & E. and 
F. A. S. L. & E. Communicated by the Author, 71 
XII. Geological Remarks on the Rock of Gibraltar and 
the adjacent Country. By Mr John Baird, 75 
XIII. List of the Steam-Boats plying on the River Clyde 
in 1822. In a Letter from James Smith, Esq. 
F. R. S. E. to Dr Brewster, - - 80 
XIV. Descriptions of Two New Genera of Nepaul Plants. 
By Mr David Don, Curator of the Lambertian 
Herbarium, - - - 82 
XV. Notice of a Species of Cannibalism, practised in the 
Interior of Sumatra ; together with some particu- 
lars relative to the Customs of the Inhabitants, and 
the Produce of the Country about Tapanooly, in- 
cluding the Camphor-Tree. Communicated in a 
Letter from India, - - - 87 
XVI. Remarks on the Larus Parasiticus or Arctic Gull ; 
and on the Larus Rissa or Kittiwake ; with an Ac- 
count of the Greenland Kittiwake ; — and on the 
Colymbus Grylle. By Lawrence Edmondston, 
Esq. Zetland, - - - - 90 
XVII. On a Species of Earthy Matter spontaneously com- 
bustible. By Joi in Murray, Esq. F. L. S. M. W. S. 
&c. &c. Communicated by the Author, - 105 
XVIII. On the Methods of separating Lime from Magnesia. 
By C. Daubeny, M. D. M. G. S. - 108 
XIX. Researches on Hydrocyanic Acid and Opium, with 
reference to their Counter-Poisons. By John 
Murray, Esq. F. L. S. M. W, S &c. Communi- 
cated by the Author. - - 124 
XX. Report on the Cultivation of Spices at Bencoolen, one 
of the British Settlements in the Island of Suma- 
tra; addressed to W. R. Jennings, Esq. Secretary 
to Government, Fort Marlborough. By J. Lums- 
DAiNE, Esq. - , - 127 
XXL On a Remarkable Peculiarity in the Law of the 
extraordinary Refraction of differently-coloured 
Rays, exhibited by certain Varieties of Apophyl- 
lite. By J. F. W. Herschel, Esq. F. R. S. Lond. 
& Edin, &c. - - - 186 
Observations on the preceding Paper. By Dr 
Brewster, - - 142 
