Six items. Consists of unpublished dendrological studies and applications, such as in relationship to water level performance. Three contributions are from H.C. Fritts of the Laboratory of Tree Ring Research at the University of Arizona. Item 3 contains maps of tree-ring study sites within the Peace-Athabasca Delta region and graph of water levels for Lake Athabasca between July 11-20 from 1820 to 1960. Item 6 is a table of tree-ring chronologies listing site names, species, location, elevation, length of time, etc.