CHAPTER XIV. 

 1849 (continued) 1852. 



PHILADELPHIA LABORATORY WORK AT CAMBRIDGE ARRIVAL OF HIS 

 SON ALEXANDER His ENGAGEMENT AND SECOND MARRIAGE - 

 ARRIVAL OF HIS DAUGHTERS IDA AND PAULINE EXPLORATION IN 

 FLORIDA AMPERE'S VISIT APPOINTMENT AS PROFESSOR OF COM- 

 PARATIVE ANATOMY AT CHARLESTON, SOUTH CAROLINA PUBLICA- 

 TION OF THREE ARTICLES IN THE " CHRISTIAN EXAMINER," AND HIS 

 OPINION ON A "CHART OF GEOLOGICAL FORMATIONS." 



AT the beginning of February, 1849, Agassiz left 

 Cambridge for a prolonged visit to Philadelphia, and 

 having agreed to deliver a course of lectures, he 

 remained there until the middle of April. His success 

 was so great that Philadelphia savants and society 

 leaders approached him with a view to an appointment 

 at the Pennsylvania University, but, as he said, it 

 was too late ; his decision was made to remain in 

 Cambridge. During the intervals of his lectures 

 Agassiz was very busy at the Academy of Natural 

 Sciences. The Academy was then the best equipped 

 institution in America. Its museum contained a large 

 number of typical specimens, fossil and living, described 

 by Morton, Conrad, Say, Nuttall, Audubon, Lucien 

 Charles Bonaparte, Harlan, Rafinesque, and others, 

 besides a great quantity of inedited species, and its 

 library was very rich and kept constantly au conrant 



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