250 APPENDIX A. 



Secession, gives an account of a visit to Agassiz. The last author 

 has also published in the "Revue de Deux niondes,' 1 of 1857, an 

 article entitled: M. Agassis et ses travau.\\ Vol. XI.. pp. 77-108. 

 The celebrated Julius Froebel, of kindergarten fame, in his work 

 Aus Amerika, 1857, relates a visit to Agassiz. 



Second Post-script it m. 1863. Etude stir I* Industrie hnitriere 

 des Etats-Unis, par Philippe de Broca. contains a letter of Agassiz 

 and notes on the acclimatization of oysters, pp. 4-6. Extrait de la 

 " Revue Maritime et Coloniale," Paris, 1863. 



1869. De la Science en France, par Jules Marcou, contains an 

 interesting letter of Agassiz, and a list of Agassiz's principal publi- 

 cations, pp. 185-191, Paris, 1869. 



