226 NATHANIEL SOUTHGATE SEALER 



active; the work of organizing, and collecting and classifying 

 specimens, as well as teaching, under Agassiz's inspiring influ- 

 ence, awakened the energies and full powers of his pupils, 

 for, whether they were regular assistants or not, they considered 

 themselves such. I find among Mr. Shaler's papers the follow- 

 ing " table of labor for the half-year ending Jan. 1, 1866" : - 



July 15. 



1. Essay on the intellectual relation of the four types of animals. 



Sept. 1. 



2. On the formation of continents. 



Optional. 



3. On the relation of philosophical systems to scientific methods. 



Nov. 1. 



4. On the changes of coast line in New England. 



Dec. 31. 



5. On the method of preserving recent specimens of natural history. 



6. Museum Catalogue. 



Lectures. 



Oct. 15. 



1. Either a course on geology or a course on paleontology for students, 



24 lectures. 



2. Five University Lectures on the growth of continents. 



3. Three University Lectures on the silting up of harbors. 

 Preparation. 



Compilation for work on formation of continents. 

 Compilation for index universal of memoirs. 



The work of organizing and arranging the Museum was ar- 

 duous and fatiguing. In the autumn of '66 Mr. Shaler became 

 convinced that he needed an entire change of climate, and, 

 further compelled by the desire to visit foreign museums and 

 scenes of geological interest, he set sail for Europe. Among the 

 letters of introduction from Agassiz, he carried with him the 

 following, which, with another letter from the same hand, will 

 show something of his situation. 



CAMBRIDGE, 4th Nov., 1866. 



Dear Monsieur Barrande : . . . Confident in your benevolence, I take 

 the liberty of presenting to you one of my pupils, who has devoted himself 

 with much success to the study of geology. Mr. Shaler is the one of my Ameri- 



