The Diatoms of Nebraska 169 



* Smith, Rev. Wm. — A Synopsis of the British Diatomaceae, Vol. 1, 



1853; Vol. II, 1856. 

 TuRPiN, P. — Observations sur les nouveau genere Surirella. Mem. cI. 

 Museum d'Hist. Nat., t. XVI, p. 362, 4to., Paris. 1828. 



* VanHeurck, Dr. Henri. — Synopsis des Diatomees de Belgique, Anvers. 



1885. 

 * A Treatise on the Diatomaceae, English translation by Wynne E. 

 Baxter. 1896. 



* WoLLE, Rev. Francis. — Diatomaceae of North America. 1890. Contains 



a large number of figures but no descriptions. 



