304 Scientific Intelligence. [April, 



fineness of its wool, which even excels that of the best merino 

 sheep. Specimens of this highly interesting animal were exhi- 

 bited, and the Society owe them to an intelligent gentleman, 

 Wm. Auld, Esq. who long commanded in Hudson's Bay. — At 

 the same meeting Professor Jameson read a paper on the form- 

 ation of valleysr The object of this communication was to 

 propose an opinion which connects the principal phenomena of 

 valleys with the rocks of which they are composed. The subject 

 was treated of under the following heads : 1 . Simple minerals 

 are formed with surfaces varying in their direction from the even 

 to the highly waved and angular. 2. Mountain rocks, or those 

 masses of which the crust of the earth is composed, like simple 

 minerals, crystallize with various surfaces from the even to the 

 angular-waved, and thus give rise to considerable inequalities, as 

 single hills and small valleys. 3. Mountain rocks also crystal- 

 lize in ranges, forming chains of hills or mountains, and hollows 

 between, or greater valleys. 4. Those ranges of mountains and 

 hills occur grouped together in various ways, with numerous prin- 

 cipal valleys, depending on the nature of the rock or rocks, and 

 of various other circumstances that prevailed during their crystal- 

 lization. 5. Those mountain rocks in many tracts on the face of 

 the earth are enormously accumulated, and thus give rise to 

 tracts of alpine lands, such as the Pyrenees. 6. On a more 

 general view we find vast circular accumulations of high land, 

 such as the sea of Europe, including that of Bohemia, Hungary, 

 &c. 7. The opening of the circular and other enclosed valleys 

 give rise to deluges. 8. The various original valleys shown to 

 be formed by the particular mode of crystallizing of the rocks, 

 and other attending circumstances, were afterwards more or less 

 altered by the action of running water, but more particularly by 

 the influence of the atmosphere. 



Article XIV. 



SCIENTIFIC INTELLIGENCE, AND NOTICES OF SUBJECTS 

 CONNECTED WITH SCIENCE. 



f. On the Aphlogistic Lamp. By Dr. Edward Daniel Clarke, 

 Professor of Mineralogy in the University of Cambridge, 

 &c. &c. 



(To the Editors of the Annals of Philosophy.) 



GENTLEMEN, 

 Since I communicated my observations respecting the meteor 

 which was seen by day-light in Cambridge, an article has ap- 

 peared in your number for March, upon the Lamp without Flame, 

 to which I alluded at the close of that communication. The 



