BIBLIOGRAPHY. 113 



14. Walker-Arnott. Original collection of W. Arnott, including his 

 own gatherings and those of all the celebrated diatomists of his time, 

 Gregory, Greville, etc. The tubes number about 2,000, and to each 

 there is a corresponding preparation. Manuscript Catalogues (written 

 by W. Arnott) give an analysis of each tube. 



15. IVeissflog. The celebrated collection of our excellent friend, pre- 

 pared by him between 1867 and 1892, which has formed part of our collection 

 since 1892. The Weissflog Collection comprises about 2,500 preparations of 

 rare diatoms, mostly selected, and all prepared with the greatest care. These 

 preparations have been used for the works of Deby, Cleve, Grunow, 

 Rattray, Witt, Ad. Schmidt, etc. A large number of forms are unique 

 specimens. Besides the selected diatoms, the collection comprises the 

 following further type slides, prepared by Mr. Weissflog : Sta. Monica, 

 541 and 389 diatoms; Seychelles Island, 402 and 257; Ngucy (Mada- 

 gascar), 326 and 255; Balearic Islands, 300; Gazelle Expedition, 173 ; 

 id. (Kerguelen Island), 82 ; Oregon, 84 ; Island of Rea (Singapore), 204 ; 

 Simbirsk (Russia), 40 and 29 ; Demerara (Guiana), 95 and 77 ; Chalky 

 Mount (Barbadoes), 102; Pensacola (Florida), 74; Oamaru, 500 and 254; 

 Java, 168 and 167 ; Jeremy, 89. 



4. Special Bibliography of the British Isles.* 



We have collected under this title the principal publications concerning 

 the distribution of diatoms in the British Isles. 



Beardsley (Amos) On a diatomaceous deposit in Leven Water, 

 near Coniston. T.M.S. (1857), v., p. 146-7. 



Bennett (A. W., M.A., B.Sc. F.L.S.) Freshwater Algae (including 

 Chlorophyllaceous Protophyta) of the English Lake district, with descrip- 

 tion of 12 new species. J.R.M.S. (1886), vi., Ser. 2, pp. 1-15 (2 plates) ; 

 reference thereto by Dr. M. Moebius, Bot. Centralbl (1887), xxxii., 

 p. 129. 



Freshwater Algae (including Chlorophyllaceous Protophyta) of North 

 Cornwall, with description of six new species. J.R.M.S. (1887), pp. 8-19, 

 2 plates. Notar, Ann. I., n. 4, p. 218, 8vo. Venezia, 1887. Referat 

 von Anton Hansgirg, Bot. Centralbl. (1887), xxx., p. 228. 



Berkeley (Rev. J. M.) and Ralfs (John). -On a new genus of 

 Diatomaceae. Ann. Nat. Hist. (1844), xiv., pp. 328-9. 







* Mr. Wynne E. Baxter has devoted much time and trouble in revising this Bibliography so as 

 to render it as exact and complete as possible. (H.V.H.) 



