Messrs Blackwood's Publications. 



THE GEOLOGY OF PENNSYLVANIA. 



A Government Survey ; with a General View of the Geology of the United States, 



Essays on the Coal-Formation and its Fossils, and a Description of the 



Coal-Fields of North America and Great Britain. 



By ProTessor Henry Darwin Rogers, F R S, F G S, 



Professor of Natural History in the University of Glasgow. 



With Seven lar^e Maps, and numerous Illustrations engraved on Copper and on 

 "Wood. In three Volumes, Royal Quarto, £8, 8s. 



THE LECTUEES OF SIR W. HAMILTON, BART. 

 OX METAPHYSICS AND LOGIC; 



With Notes from Original Materials, and Appendix containing the Author's 

 Latest Development of his New Logical Theory. 



Edited by the Rev. H. L.. Mansel. B D, Oxford; 

 and John Veitcb, 91 A, Edinburgh. 



In Four Volumes Octavo, price £2, 8s. 



Vols. III. and IV. in a few weeks. 



O 



INSTITUTES OF METAPHYSIC. 



THE THEORY OF KNOWING AND BEING. 

 By James F. Ferrier, \ B, Oxon. 



Professor of Moral Philosophy and Political Economy, St Andrews. 



Second Edition. Crown Octavo, price 10s. 6d. 



THORNDALE; OR, THE CONFLICT OF OPINIONS, 



By '^Viiliain i^mith, 



Author of " Athelwold : a Drama," " A Discourse on Ethics," &c. 



" .Sleeps the future, like a snake enrolled. 

 Coil within coil." — Wordsworth. 



Second Edition, Crown Octavo, price 10s. 



THE EIGHTEEN CHRISTIAN CENTURIES. 



By the Rev. James White. 



Third Edition, with Analytical Table of Contents, and a Copious Index. 

 Post Octavo, price 7s. 6d. 



HISTORY OF FRANCE, 



FROM THE EARLIEST PERIOD TO THE YEAR 1848. 

 By tlie Rev. James White, 



Author of the " Eighteen Christian Centuries." 



Post Octavo, price 9s. 



" Mr White's ' History of France,' in a single volume of some 600 pages, contains 

 every leadings incident worth the telling, and abounds in word-painting, whereof a para- 

 graph has often as ranch active life in it as one of those inch-square etchings of the 

 great Callot, in which may be clearly seen whole armies contending in bloody arbitra- 

 ment, and as many incidents of battle as may be gazed at in the miles of canvass in the 

 military picture-galleries at Versailles." — Athenoeum. 



