12 
Bryophyta. 
PAGE 
Dupler, A. W. — Air Chambers of Reboulia hemisphaerica 311 
Pearson, Wm. H. — Hepaticse of New Caledonia 311 
Nicholson, W.-E. — Southbya nigrella (De Not.) Spruce in Britain 312 
Pearson, W. H. — Ricciocarpus natans (L.) Corda,from Africa 312 
Familler, Ignaz — Hepaticae of Bavaria 312 
Pessin, Louis J. — Epiphyllous Plants of Certain Regions in Jamaica 312 
Pottier, Jacques — Researches on the Development of the Leaf of Mosses .. .. 313 
Dixon, H. N . — Some New Genera of Mosses 313 
Williams, R. S. — West Indian Mosses 313 
Dixon, H. N. — Note on a Moss in Amber .. .. 314 
Watson, W. — New Variety of Orthodontium gracile Schwaegr .. 314 
Binstead, C. H. — Mosses of the English Lake District 314 
Buncle, T. — Moss Exchange Club 314 
Evans, William — Moss Records from St. Kilda .. .. 314 
Hotson, John W. — Sphagnum as a Surgical Dressing 314 
„ „ — Sphagnum from Bog to Bandage 315 
„ — Sphagnum used as a Surgical Dressing in Germany during the 
World War 315 
Thallophyta. 
Algae. 
Kofoid, C. A., & Olive Swezy — Free-living Unarmoured Dinoflagellata . . .. 315 
Chatton, Edouard — New Kinetic Mechanism. Syndinial Mitosis in the Plasmo- 
dial Parasitic Per id inieas .. 316 
Crow, W. Bernard — Classification of Some Colonial Chlamydomonads .. .. 316 
Hazen, Tracy E. — Phytogeny of the Genus Brachiomonas .. 316 
„ „ — New British and American Species of Lobomonas : A Study in 
• Morphogenesis of Motile Alyas 317 
Lewis, I. F., & W. R. Taylor — Notes from the Woods Hole Laboratory. 1921 .. 317 
Mameli, Eva — Researches on the Chemical Constitution of the Cell Wall of the 
Cyanophyceas 317 
Crow, W. B. — Critical Study of certain Unicellular Cyanophyceae from the Point of 
View of their Evolution 318 
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