Bibliography of Louis Agassiz. 307 



*Nouvelles Observations Faites en Etudiant les Nageoires 



des Poissons. (wSociete Helvetique des Sciences Naturelles. Actes, 

 1845, pp. 49-52.) 



^Numerous Minute Tubes in Fishes, Opening Externally. 

 (Bost. Soc. of Nat. Hist. Proceedings^ v. iii., 1848, pp. 27, 28.) 



Observations de M. Durocher Relatives aux Phenomenes 

 Erratiques de la Scandinavie, Remarques sur les. (Comptes Rendus. 

 Hebdomadaires des Seances de V Academic des Sciences^ Paris, T. xxii., 

 Pt. 2, 1845, pp. 1331-1333.) 



* Same. In English. (^Edinburgh New Phil, yi., v. xl., 



1845, p. 237.) 



Observations Geologiques faites dans la Valine de TAma- 

 zone. {Co/nptes Rendus, Hebdomadaires des Seances de V Acadimie 

 des Sciences, Paris, T. Ixiv., 1867, pp. 1269, 1270.) 



*Ordre d' Apparition des Caract^res Zoologiques pendant 



la Vie Embryonnaire. {Revue des Cours Scientifiques, T. vi., 1869, 

 pp. 169-171.) 



Origin of Species. [From " Contributions to the Nat. Hist, of 

 the U. S.," V. iii.] {Ainer. J I. of Sci. and Arts, 2d ser., vol. xxx., 

 July, i860, pp. 142-155.) 



Parallel Roads of Glen Roy in Scotland. {Atlantic Monthly, 

 V. xiii. , June, 1864, pp. 723-736.) 



*Parasite Little Bodies of Hydra. (Bost. Soc. of Nat. Hist. 

 Proceedings, v. iii., 1850, pp. 354, 355.) 



*Period in the History of our Planet, A. {Edinburgh New 



Phil. JL, V. xxxv., 1843, pp. 1-29.) 



* Same. In German. {Neue Notizen aus dem Gebiete der 



Natur- und Heilkunde, Bd. xxvii., 1843, cols. 241-248; 257-264; 

 273-280 ; 289-292.) 



*Petromyzontidae and Their Embryonic Development and 



Place in the Natural History System. {Edinburgh New Phil. jfL, 

 V. xlix., 1850, pp. 242-246.) 



Phonetic Apparatus of the Cricket. (Amer. Assoc. for the 

 Advanc. of Sci. Proceedings, 1848, p. 41.) 



Physical History of the Valley of the Amazons. {Atlantic 

 Monthly, v. xviii. , July- Aug. , 1866, pp. 49-60, 159-169.) 



