334 MINNESOTA BOTANICAL STUDIES. 



480. Ehreuberg, C. G. Ueber Prof. Whitney's neueste 

 Erliiuterungen der Californischen Bacillarien-Gebirge. Berlin, 

 Monatsb. Akad. 124-139. 1872. 



481. . Grossere Felsproben des Polycistinen- 



Mergels von Barbados mit weiteren Erliiuterungen. Berlin, 

 Monatsb. Akad. 213-263. 1873. 



482. . Fortsetzung der mikrogeologischen Studien 



als Gesammt-Uebersicht der Mikroskopischen Paliiontologie 

 gleichartig analysirter Gebirgsarten der Erde, mit specieller 

 Riicksicht auf den Poly cistinen-Mergel von Barbados. Berlin, 

 Akad. Abhandl. (Physik., Abth. 1) 1-223. 1875. 



483. Eisen, G. Restricted distribution of fresh-water Oli- 

 gochaeta. Zoe. 4:20-22. Apl893. 



Ilemarks upon the geographical distribution of fresh-water algae. 



484. Emerson, G. B. Marine plants. Proc. Boston Soc. Nat. 

 Hist. 1:13. 17Mrl841. 



Sixteen species of marine algae exhibited. 



485. Ernst, A. and Slack, H. J. Diatomaceous Earth from 

 the Lake of Valencia, Caracas. Mo. Mic. Jour. 6:69, 70. 

 lAgl871. 



Eschweiler, F. G. See Martins, K. F. P. yon, E-^ch- 

 weiler, F. G. and Nees Ton Esenbeck, C. G. 



486. Eyferth, B. The Simplest Forms of Life.— (Am. 

 Quart. Mic. Jour. 1 : 146-155. ' Ja. 1 : 225-234. Ap. 1 : 305-310. 

 J11879.)— (Am. Mo. Mic. Jour. 1:10. Ja. 1:115-117. Je. 

 1:154,155. Agl880.) 



Translations from the German with additions. Polyedrium enorme 

 De Bary is stated to be the only species of this genus found in 

 America. 



487. E. E. Algae. West Am. Scient. 2 : 66. J11886. 



488. Fahnstock, . American Marine Algae. Proc. 



Phil. Acad. 6:xliv. (9N1852.) 1853. 



Twenty-nine specimens donated to the Museum. 



489. Farlow, W. G. Cuban Sea- weeds. Am. Nat. 5:201- 

 209. Jel871. 



490. . List of the Sea-weeds or Marine Algae of the 



south Coast of New England. U. S. Pish Commission of Fish 

 and Fisheries. Report on the Condition of the Sea Fisheries 

 of the south Coast of New England, in 1871 and 1872. Part I, 

 281-294. 1873. 



491. . Stenogramma interrupta. Am. Nat. 9:311. 



Myl875. 



Note on E. M. Holmes' article in Grevillea for December 1874. 



