444 LOUIS AG A SSI z. 



During the winter of 1847, while continuing 

 his lectures in Boston and its vicinity, he lec- 

 tured in other places also. It is difficult to 

 track his course at this time ; but during the 

 winters of 1847 and 1848 he lectured in all 

 the large eastern cities, New York, Albany, 

 Philadelphia, and Charleston, S. C. Every- 

 where he drew large crowds, and in those 

 days his courses of lectures were rarely al- 

 lowed to close without some public expression 

 of gratitude and appreciation from the listen- 

 ers. Among his papers are preserved several 

 sets of resolutions from medical and scientific 

 societies, from classes of students, and from 

 miscellaneous audiences, attesting the enthu- 

 siasm awakened by his instruction. What he 

 earned in this way enabled him to carry on 

 his work and support his assistants. Still, 

 the strain upon his strength, combined with 

 all that he was doing beside in purely scien- 

 tific work, was severe, and before the twelve- 

 month was out he was seriously ill. At this 

 time Dr. B. E. Cotting, a physician whose 

 position as curator of the Lowell Institute had 

 brought him into contact with Agassiz, took 

 him home to his house in the country, where 

 he tended him through some weeks of tedious 

 illness, hastening his convalescence by excur- 



