310 MINNESOTA BOTANICAL STUDIES. 



170 Blackburn, W. On Dr. Carpenter'.s address delivered 

 at Montreal to the Histological and Microscopical Section of 

 the American Association for the Advancement of Science. 

 (Diatom tests.) Mic. News. 29. 1883. London. 



171. Blackford, E. Green bearded oysters. — (The Micro- 

 scope. 3:33-35. Apl883.) 



172. Blackham, G. E. Pleurosigma angulatum. Am, Jour, 

 Mic. Pop. Sci. 5:160. J11880. 



173. Blake, J. On some diatoms from a hot spring in 

 Pueblo Valley, Humboldt county, Nevada. (1871.) Proc. Cal. 

 Acad. 4:183. 1868-72.— (Am. Nat, 5:716. N1871.)— (Am. Jour, 

 Sci. Arts. in. 4:148,149. Agl872.)— (Ann. Mag. Nat. Hist. 

 10:312. 1872.)— (Mo. Mic, Jour. 9:71. 1F1873.) 



Red algae and about 50 species of diatoms. 



174. . On algae found growing in hot springs at dif- 

 ferent temperatures. (1871.) Proc. Cal. Acad. 4 : 193. 1868-72. 



175. Blake, W. P. Notice of remarkable strata containing 

 the remains of Infusoria and Polythalamia in the Tertiary for- 

 mation of Monterey, California. Proc, Phil. Acad. 7:328-331. 

 24Apl855, 



Specimens of these strata were found to be rich in marine diatoms. 



176. Boldt, R. Desmidieer fran Groenland. Bihang Kongl. 

 Svensk. Vet. Akad. Handl. 13 : Afd. IIP. 1-48. pi. 1, 2. (8Je 

 1887) 1888. — (Bot. Centralb. 38:736-739. 1889.)— (Jour. Roy. 

 Mic. Soc. 1889:676, 677. 01889.)— (Bull. Torr. Bot. Club. 

 17:20, 15Jal890.) 



A list of desmids with a description of new species in 4 genera. 



177. , Grunddragen af Desmidieernas utbredning i 



norden. Bihang Kongl. Svensk. Vet. Akad. Handl. 13 : Afd, 

 IIP. 1-110. (8Jel887.) 1888. 



178. . Nagra soetvattens-alger fran Groenland. Bot. 



Notiser, 156-158. If. 1893. 



Fourteen species named. 



179. Booth, M. A. Mailing packages of Diatoms. Am. Mo. 

 Mic. Jour, 5: 100. Myl884. 



180. Boruet, E. and Flaliault, €. Note sur le genre Aulo- 

 sira. Bull. Soc. Bot. Prance. 32: 119-122. pi. J^. (13Mr) 2Myl885. 



Montevideo specimens. 



181. . Revision des Nostocacees heterocysteis con- 



tenues dans les principaux Herbiers de France. Ann. Sci. Nat. 

 vii. 3:323-381. 1885. 4:343-373.1885.5:51-129.1886. 7:177- 

 262. 1887. 



Numerous species described from various American localities. 



