Recurrent geothermally induced debris avalanches on Boulder Glacier, Mount Baker, Wash_____ __ _____________.____David Frank, Austin Post, and J. D. Friedman Changes in concentration of certain constituents of treated waste water during movement through the Magothy aquifer, Bay Park, N.Y_______H. F. H. Ku, John Vecchioli, and 8. E. Ragone Mobilization of iron in water in the Magothy aquifer during long-term recharge with tertiarytreated sewage, Bay Park, N.Y___________8. E Ragone, H. F. H. Ku, and John Vecchioli Norman Creek, a source of recharge to Maramec Spring, Phelps County, Mo______________ __________________.________________E. E. Gann and E. J. Harvey 99 Water-quality changes during a salmon run in an interior Alaskan stream________________ _______.___________J. W. Natiman and D. R. Kernodle 103 Combining estimates of low-flow characteristics of streams in Massachusetts and Rhode Island___ _ _ ____________________.__________________________ G. D. Tasker 107 Adjustment of logarithmic flood-frequency statistics for gaged California streams to minimize the time sampling error____________________________8. E. Rants and J. R. Crippen Pyrrolidone a new solvent for the methylation of humic acid.________________________