Sir Charles Lyell. 273 
ever since continued to enjoy. ‘Which of us,’ asked Prof. 
Huxley, in his Anniversary Address to the > Geological Society 
in 1869, ‘has not thumbed every page of the “ Principles of 
Geology ?”? And he adds, ‘I think that he who writes fairly 
the history of his own progress in geological thought will not 
easily be able to separate his debt to Hutton from his obligations 
to Lyell.’ This cordial testimony of a fellow-laborer in the 
cause of scientific enlightenment exactly indicates Sir Charles 
Lyell’s place in the history of that task. He was a man of 
singularly open mind, one of those who stand above their 
contemporaries and hail the dawn of new truths upon the 
world, His own works mark the progress of his own as well 
as of the public opinion on the great problems raised by scien- 
tific discovery, and he remained to the end of his life always 
ready for the prado; of new facts, and for the corresponding 
modifications of opini 
“Sir Charles ey had traveled and seen much. Thus in 
early manhood he explored many parts of Norway, Sweden, 
Belgium, Switzerland, Germany, and Spain, rae ge the vol- 
canic regions of Catalonia. In 1886 he vis the Danish 
partly in order to deliver a course of lectures on his favorite 
science at Boston, and partly in order to make observations on 
the structure and formation of the Transatlantic Continent. He 
remained in the United States for a year, traveling over the 
Northern and Central States, and extending his journey as far 
rence to the mouths of the Mississippi. On returning from this 
journey, he published his ‘Travels mm North America,’ a wor 
of considerable interest to other persons Liisiden geologists, and 
showing that he could extend his observations to the stratifica- 
of Mexico, and more especially the great sunken area of eee 
Madrid, which had been devastated by an earthquake 30 or 40 
years previously. Upon reaching England, he published his 
Boon Visit to the United States,’ a companion to his former 
work. For his other scientific apers we must refer our readers 
to the ‘Proceedings’ of the Geological Society, 1846-49, and 
its ‘Transactions.’ 
“Late in life, about ten or twelve years ago, Sir Charles Lyell 
published another very important work, on ‘The Antiquity of 
Am. Jour. Set., Tarrp Sertes—Vot. X, No. 58.—Oor., 1875. 
18 
