568 LOUIS AGASSIZ. 



lowship which he established and encouraged 

 in the laboratory grew the warmest relations 

 between his students and himself. Many of 

 them were deeply attached to him, and he was 

 extremely dependent upon their sympathy and 

 affection. By some among them he will never 

 be forgotten. He is still their teacher and 

 their friend, scarcely more absent from their 

 work now than when the glow of his enthu- 

 siasm made itself felt in his personal pres- 

 ence. 



But to return to the distribution of his time 

 in these busy days. Having passed, as we have 

 seen, the greater part of the day in the Mu- 

 seum and the school^ he had the hours of the 

 night for writing, and rarely left his desk be- 

 fore one or two o'clock in the morning, or even 

 later. His last two volumes of the " Contri- 

 butions," upon the Acalephs, were completed 

 during these years. In the mean time, the 

 war between North and South had broken 

 out, and no American cared more than he for 

 the preservation of the Union and the institu- 

 tions it represented. He felt that the task of 

 those who served letters and science was to 

 hold together the intellectual aims and re- 

 sources of the country during this struggle 

 for national existence, to fortify the strong- 



