Tilden: bibliography of American algae. 415 



1497. Desfontaines, R. L. and Mirbel, C. F. Rapport sur la 

 Flore des Malouines de M. D'Urville. — (Ann. Sci. Nat. 6:469- 

 476. 1825.) 



Read before the Royal Acaclemy of Sciences, Oct. 24, 1825. 



1498. Du Petit-Tliouars, A. Melanges de Botanique et de 

 Voyages. Premier Receuil. 1811. Paris. 



Twenty-one species of algae collected at Tristan da Cunha. 



1499. Edwards, A. M. Different Diatoms on the same Stipes. 

 Quart. Jour. Mic. Sci. N. S. 15:63, 64. 1875. 



1500. Ehrenberg, C. G. Ueber die weitere Entwicklung 

 der Kenntniss des Gruensandes als gruener Poly thalamien- 

 Steinkerne, ueber braunrothe und corallrothe Steinkerne der 

 Polythalamien Kreide in Nordamerika, und ueber den Meeres- 

 grund aus 12900 Fuss tiese. Mb. Berl. Akad. 172. 8Mrl855. 



1501. . De la tobafitolitaria del valle de Toluca por 



el Senor Ehrenberg. Traduccion communicada por el Senor 

 Doctor Burkart a Don Antonio del Castillo con encargo 

 de corregirla para su publicacion en Mexico. La Naturaleza. 

 3:118. (1 Lam.) 1874. 



1502. Forbes, S. A. The Food of Fishes. Studies of the 

 Food of Birds, Insects and Fishes, made at the Illinois State 

 Laboratory of Natural History at Normal, Illinois. 18-65, 

 N1880. 



1503. . On the Food of Young Fishes. Studies of 



the Food of Birds, Insects and Fishes, made at the Illinois 

 State Laboratory of Natural History, at Normal, Illinois. 66-79. 

 N1880. 



1504. . The Food of Illinois Fishes. 111. St. Lab. 



Nat. Hist. The Natural History of Illinois. Bull. No. 2. 71-86. 



1505. Gaudichaud, C. Rapport sur la Flore des iles 

 Malouines.— (Ann. Sci. Nat. 5:89-110. j)l. 2-3. 1825.) 



Read before the Academy of Sciences, May 16. 



1506. Greville, K. K. Note on a Structure observed in 

 Surirella. Quart. Jour. Mic. Sci. 7:116,117. If. 1859. 



A specimen from Californian guano. 



1507. . On Plagiogramma. Quart. Jour. Mic. Sci. 



7:207-211. pi. 10. 1859. 



Californian guano furnished specimens. 



1508. . On Campylodiscus, &c. Trans. Mic. Soc. 



N. S. 8:29-32. pi. 1. 1860. 



Several new species from Jamaica. 



