Articles Page Numbers DIATOMS AS BIO-INDICATORS OF NITRATE CONCENTRATIONS IN LOCAL FRESHWATER SPRINGS 56-66 EFFECT OF pH ON SURVIVAL OF THE SLIMY SCULPIN, COTTUS COGNATUS 30-34 EFFECTS OF COPPER AND NITRATE POLLUTION ON SURVIVAL OF THE FRESHWATER AMPHIPOD, GAMMARUS MINUS 26-29 EFFECTS OF pH, TEMPERATURE, POND SIZE, AND LOCATION ON NUMBER OF WOOD FROG (RANA SYLVATICA) EGGS IN VERNAL PONDS 20-25 FIELD EVIDENCE FOR INTRASPECIFIC COMPETITION BETWEEN SUGAR-MAPLE TREES (ACER SACCHARUM) 51-55 LOCATION OF EGGS OF THE SPOTTED SALAMANDER (AMBYSTOMA MACULATUM) IN RELATION TO AQUATIC VEGETATION IN A VERNAL POND 6-10 RODENT-POPULATION DENSITY IN RELATION TO HABITAT STRUCTURE 35-38 SUGAR-WATER DENSITIES IN SUGAR-MAPLE TREES (ACER SACCHARUM) AT THE RAYSTOWN FIELD STATION 1-5 SUGAR-WATER DENSITY IS UNRELATED TO THE SIZE OF SUGAR MAPLE TREES (ACER SACCHARUM) AT THE RAYSTOWN FIELD STATION 15-19 THE EFFECTS OF TEMPERATURE ON THE GROWTH OF THE MARBLED SALAMANDER (AMBYSTOMA OPACUM) LARVAE 11-14 THE INFLUENCE OF URBANIZATION ON MUDDY RUN 39-50
