XXXV 



Mr. Reiiiiie married, in 1828, Margaret Anne, daughter of the late Sir 

 John Jackson, Bart., M.P., by whom he has left issue two sons and a 

 daughter. Some time before his death he met with a severe accident, from 

 the effects of which he never recovered. 



Mr. Rennie was a man of gentle nature and quiet demeanour, in private 

 as well as in public life greatly esteemed and respected. 



Henry Barv/in Rogers was born in Philadelphia in 1809. At the 

 age of twenty-one he vv^as appointed Professor of Chemistry in Dickinson 

 College, Carlisle, Pennsylmiia, and afterv/ards to the Chair of Geology in 

 the University of Pennsylvania. Then followed his superintendence of the 

 Geological Survey of the State of New Jersey, residence at Boston, voyages 

 to Europe, and (in 1857) acceptance of the Professorship of Natural 

 History and Geology in the University of Glasgow, in which honourable 

 post he died in May 1866. 



Prof. Rogers pubhshed his Report on the Geology of New Jersey in 1835 : 

 a year later he was intrusted with the important task of investigating and 

 rectifying the geology of the great State of Pennsylvania, in which he spent 

 several years of earnest labour. His brother. Prof. YV. B. Rogers, was at 

 the same time employed in the preliminary survey of Virginia, whereby some 

 of the most important problems in American geology — the structure of the 

 Appalachian mxOuntain-chain, and, indeed, of half the continent of North 

 America — were simultaneously worked out by two of the ablest observers of 

 the day. The results of this survey, discussed in a joint Report, were 

 communicated to the Meeting of the American Association of Geologists 

 and Naturalists held at Boston in the summer of 1842, ''with an elo- 

 quence and fascination of style never surpassed." It placed the two 

 brothers in an em.inent position, recognized by the geologists of the 

 world. 



The anticipations formed on this occasion were fully confirmed by the 

 final Report on the Geology of Pennsylvania, which was published at Edin- 

 burgh, with maps and sections, in 1858. To ensure the bringing out of 

 this valuable work in a style commensurate with its importance. Prof. 

 Rogers came to England, and, while residing in Edinburgh, made intimate 

 acquaintance with many men of mark in the literature and science of 

 Scotland. In society, and as a lecturer, his great and varied knowledge 

 gave him an advantage which he exercised with graceful facility, and on 

 favourite topics he would at times surprise and charm his hearers by 

 bursts of eloquence. 



Besides the works above mentioned. Prof. Rogers wrote papers and 

 reports, which were published in the Reports of the American and of the 

 British Association for the Advancement of Science, the Transactions of 

 the American Philosophical Society, the Journal of the Boston Society of 

 Natural History, in Silliman's Journal, the Edinburgh Philosophical 

 Journal, and the Proceedings of the Geological Society. The long list of 



d 2 



