LITERATURE CONSULTED. 



1856. Brightwell, Th. On the filamentous longhorned Diatomaceas 



(Quarterly Journ. of Microscop. Science, Vol. IV). 

 1858. — b) Further observations on the genera Triceratium and 



Chatoceros. (Id., Vol. VI). 

 1886. Castracane, A. F. de. Report on the Diatomaceae Collected by 



H. M. S. Challenger during the Years 1873-76. (Report 



of the Chall. Exped., Bot., Vol. II). 

 1873 a. Cleve, P. T. On Diatoms from the Arctic Sea. (Bihang t. k. 



Sv. Vetensk.-Akadem. Handl., Bd. I, No. 13). 

 1873 b. — Examination of Diatoms found on the Surface of the Sea 



of Java. (Ibidem, Bd. I, No. 11). 

 1878. — Diatoms from the West-Indian Archipelago. (Ibidem, Bd. 



5, No. 8). 

 1881. — On some new and little known Diatoms. (Kongl. Sv. Vet.- 



Akad. Handl., Bd. 18, No. 5). 

 1891. — The Diatoms of Finland. 

 1897 a. — A Treatise of the Phytoplankton of the Northern Atlantic 



and its Tributaries. 

 1897 b. — Report on the Phytoplankton collected on the Expedition 



of H. M. S. " Research," 1896. (15th annual Report of 



the Fishery Board for Scotland, Part III, p. 297-304). 

 1900 a. — Notes on some Atlantic Plankton-Organisms. (K. Sv. Vet.- 



Akad. Handl., Bd. 34, No. 1). 



1900 c. — Plankton from the southern Atlantic and the southern 



Indian Ocean. (Ofversikt af K. Vet.-Akad. Forhandl., 1900, 

 No. 8). 



1901 a. — The Seasonal Distribution of Atlantic Plankton Organisms. 



1901 b. — Plankton from the Indian Ocean and the Malay Archipelago. 



(Kongl. Sv. Vet.-Akad. Handl, Bd. 35, No. 5). 



1902 a. — Additional Notes on the Seasonal Distribution of Atlantic 



Plankton Organism. 

 1905. Gran, H. II. Diatomeen. (Brandt u. Apstein Nordisches 

 Plankton, Part XIX). 



