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Art. X. General Observations on the former and present Geo-

logical Condition of the Countries discovered by

Captains Parry and Ross. By Professe: --- AMESON, 104

XI. Remarks tending to explain the Geological History

of the Earth. By Professor ESMARK,


XII. Observations on the Structure and Functions of the

Sponge. By R. E. Grant, M.D.F.R.S.E. F.L.S.

M.W.S. Honorary Member of the Northern Insti.

tution, &c. Communicated by the Author. Con-
quded from the proceding Volume, p. 351. With
à Plate


XIII. Enuntetation of the Instruments requisite for Me-

teorological Observations; with Remarks on the

mode of conducting such Observations. By Pro-

fessor LEšte:..:


XIV. Description of the Eruption of Long Lake and Mud

Lake, in Vermont, and of the desolation effected

by the rush of the waters through Barton River,

and the lower country, towards Lake Memphre-

magog, in the summer of 1810, in a Letter to Prof.

Silliman. By the Rev. S. EDWARDS Dwight.

With a Plan of the Lakes,


XV. Information regarding the Overland Arctic Expe-



XVI. On the Luminousness observed in the Eyes of Hu-

man Beings, and also in those of Cats, Dogs,

Horses, and Sheep. By Dr CHARLES LUDWIG



XVII. Account of the Habits of the Turkey Buzzard (Vul-

tur aura), particularly with the view of exploding

the opinion generally entertained of its extraordi-

nary power of Smelling. In a Letter to Professor

JAMESON, by John J. AUDUBON, Citizen of the

United States,


XVIII. List of Rare Plants which have Flowered in the

Royal Botanic Garden, Edinburgh, during the

last three months; with Descriptions of several

New Plants. Communicated by Dr GRAHAM, 184

XIX. Celestial Phenomena from January 1. to April 1.

1827, calculated for the Meridian of Edinburgh,

Mean Time. By Mr GEORGE INNES, Aberdeen, 188

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13. Crystallizations of Sulphate and Carbonate of Lead ob-

served by M. Hartmann. 14. Geognostic Position of

Platina in America. 15. Jet discovered in Wigtonshire.

16. Geognostical Distribution of Gold in the Uralian

Mountains. 17. Geognostic situation of the Siberian

Platina. 18. Cordierite found in Norway. 19. Magni-
ficent Crystals of Sulphate of Iron, or Green Vitriol.
20. Iserine and Iron-sand in Cheshire. 21. Bismuth
Cobalt-Ore. 22. Selenium in Red Copper-Ore, 197-201

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