Nezv Publications. 399 



sand million of tons. The annual quantity of coal consumed 

 and exported from Wales, amounts, according to our author, to 

 2,754,895 tons. 



2. Principles of Geology ; being an Attempt to explaiii the former 

 Changes of the Earth's Surface, in Reference to Causes no7V in 

 Operation. By Charles Lyell, Esq. F. R. S., Foreign Secre- 

 tary to the Geological Society of London, &c. Vol. I. pp. 511. 



Mb Lyell is young, active, and intelligent, therefore well 

 qualified to become a geologist, and that he is an adept in this 

 science, the present work affords satisfactory evidence. The 

 first volume of his Geology (all that is yet published), is very 

 interesting and amusing, and should be read by every one 

 who takes an interest in this rising branch of natural history. 

 The arrangement of his materials is good, it being that proposed 

 and followed by Werner, in his Lectures on Geognosy, and of 

 which accounts have been published by himself and his pupils. 

 The four first chapters of the volume are occupied with the 

 history of geology, not, however, given with sufficient fairness, 

 owing to particular prejudices, — but all of us are hable to such 

 faihngs. Chapters six, seven, and eight, make us acquainted 

 with the views of authors in regard to geological climate. Here, 

 although the author displays his usual ingenuity and address 

 in statement and argument, we find no new views ; nor is this 

 to be regretted, considering the slender store of materials we 

 possess for speculating on primeval climates. The next eight 

 chapters contain a view of the destroying and forming effects of 

 water on the earth. Here our author has followed the arrange- 

 ment and views of Werner, and, by bringing up the subject to 

 the present time, has done a service to English geology. The 

 remaining chapters contain a full detail, according to the Wer- 

 nerian arrangement, of the phenomena of volcanoes and earth- 

 quakes, and of the changes these have occasioned on the sur- 

 face and in the crust of the earth. We trust the most import- 

 ant part of the work, that which treats of the rocks and forma- 

 tions of the crust of the earth, will speedily make its appear- 

 ance. If executed with equal ability with the present, it will 

 supply a deficiency in our present geological Htcraturc. 



