512 LOUIS AGASSIZ. 



importance when it is found that the same 

 correspondence between rank and succession 

 obtains through all classes of the animal king- 

 dom, and that similar features are displayed 

 in the embryonic growth of all types so far 

 as now known. 



But I feel my head is growing dull, and I 

 will stop here. Let me conclude by congrat- 

 ulating you on having completed your great 

 work on Crustacea. . . . 



Agassiz returned to the North in the spring 

 of 1853 by way of the Mississippi, stopping 

 to lecture at Mobile, New Orleans, and St. 

 Louis. On leaving Charleston he proffered 

 his resignation with deep regret, for, beside 

 the close personal ties he had formed, he was 

 attached to the place, the people, and to his 

 work there. He had hoped to establish a per- 

 manent station for sustained observations in 

 South Carolina, and thus to carry on a series 

 of researches which, taken in connection with 

 his studies on the New England coast and its 

 vicinity, and on the Florida reefs and shores, 

 would afford a wide field of comparison. This 

 was not to be, however. The Medical Col- 

 lege refused, indeed, to accept his resignation, 

 granting him, at the same time, a year of 



