ARTICLES M. Waldichuk: Waste disposal in relation to the physical environment—oceanographic aspects D. H. Mitchell: Excavations at two trench embankments in the Gulf of Georgia region A. H. Stryd and James Baker: Salvage excavations at Lillooet, British Columbia W. H. Mathews: Geomorphology of Lightning Creek Valley, Manning Park, Southwestern British Columbia C. J. Anastasiou and L. M. Churchland: An Olpidiopsis parasitic on a marine fungus M. Chihara: Field, culturing and taxonomic studies of UIva fenestrata P. & R. and Ulva scagelii sp. nov. (Chlorophyceae) in British Columbia and Northern Washington K. Cole and S. Lin: The cytology of Leathesia difformis, I. Fine structure of vegetative cells in field and cultured material V.J. Krajina: Sarraceniaceae, a new family for British Columbia J. Markham: Studies on the haptera of Laminaria sinclairii (Harvey) Farlow, Anderson et Eaton R.E. Norris and M.J. Wynne: Notes on marine algae of Washington and Southern British Columbia, Ill A.S. Randhawa and K.I. Beamish: Sexual reproduction in Saxifraga ferruginea Graham W.B. Schofield: A checklist of Hepaticae and Anthocerotae of British Columbia W.B. Schofield: A selectively annotated checklist of British Columbia mosses G.R. South: Intertidal marine algae from Gabriola Island, British Columbia 1 J.R. Stein and J.F. Gerrath: Freshwater algae of British Columbia: desmids of bog lakes in Coast Mountain area 1 R.Y. Edwards Notes on the gulls of Southwestern British Columbia G.G.E. Scudder and K.H. Mann: The leeches of some lakes in the Southern Interior Plateau region of British Columbia