April, 1843. 



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ADVERTISING SHEET 



OF THE 



AMERICAN JOURNAL OF SCIENCE. 



DR. MANTELL'S WORKS. 



Just published and for sale by 



RELFE & FLETCHER, 17 Comhill, London, 



The Sixth Edition of Thoughts on a Pebble, with 2 Colored 

 PJates and Wood Cuts, elegantly bound. Price 2s. 6d. 



Fourth Edition of the Wonders of Geology. 2 vols, with nume- 

 rous Plates and Illustrations. Price 18s. Large Bridgewater Edi- 

 tion, a splendid work, price 28s. 



Preparing for Publication — Popular Lectures on the Nervous 

 System, one volume, with numerous Plates. 



First Lessons, or an Introduction to the Phenomena of Geology 

 and the Study of Organic Remains ; intended for persons wholly 

 unacquainted with the subject. 1 vol. uniform with the Wonders 

 of Geo)ogy. Numerous Plates and Illustrations. Price 10s. 



London, May, 1842. 





Griffin's Cheap Chemical Apparatus. 



The subscribers have on sale every kind of French, German, and 

 English Chemical Apparatus, employed by Analytical Chemists, 

 Lecturers, Students, and Chemical Manufacturers. The instruments 

 are of the newest and most useful kinds, such as are employed by 

 Berzelius, Liebig, Rose, Mitscherlich, Dumas, Gay Lussac, Fara- 

 day, Graham, and other eminent chemists. The establishment is, 

 under the superintendence of John Joseph Griffin, author or 

 "Chemical Recreations/' and translator of "Rose's Manual of An- 

 alytical Chemistry," who has recently visited the principal chemical 

 laboratories and instrument-makers in France, Germany, and Eng- 

 land, for the purpose of collecting the best patterns of the apparatus 

 at present employed both in Organic and Inorganic Chemistry. 



The central position of Glasgow has recommended it as a suitable 

 place for a Depot of Philosophical Apparatus. Being only one day's 

 sail from Liverpool, it is at all times easy to send goods from it to 

 New York or Boston. 



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