The Pennsylvania Academy of Sciences has published Volume 89, issue 2 of the Journal of the Pennsylvania Academy of Science containing the following research articles:
COMPARISION OF GROWTH AMONG DIFFERENT AGE CLASSES OF LARGEMOUTH BASS (MICROPTERUS SALMOIDES) POPULATIONS IN TWO IMPOUNDENTS IN NORTHWEST PENNSYLVANIA Michael Enright, Fred J. Brenner, Larissa Cassano, and Katherine R. Beyer-Kramer
EFFECT OF ROAD PROXIMITY ON REPRODUCTIVE EFFORT AND MOVEMENT PATTERNS OF THE WOOD FROG (RANA SYLVATICA) Katherine E. Engberg and Megan B. Rothenberger
OPTIMIZATION OF CELL CULTURE CONDITIONS FOR THE EARTHWORM EISENIA HORTENSIS: A STUDY INVESTIGATING THE EFFECTS OF MEDIA, CARBON DIOXIDE, TEMPERATURE, SERUM, AND ANTI-FUNGAL AGENTS Sheryl L. Fuller-Espie, Darcy R. Harris, Jennifer H. Daly, and Juliann M. Jakeman
EVALUATION OF CHIRONOMIDAE DIVERSITY IN THE LITTLE PAINT CREEK WATERSHED, PENNSYLVANIA Rebecca L. Webb, Deannah Dick and Ryan Wilson
RE-ANALYSIS OF BREEDING BIRD DENSITY IN EASTERN PENNSYLVANIA WOODLOTS Ralph G. Mancke & Thomas A. Gavin
AN INEXPENSIVE AND MOBILE SEE-THROUGH TUNNEL FOR COLLECTING BIRD FLIGHT PERFORMANCE DATA IN THE FIELD Clay E. Corbin, Kenneth E. Pallis, Brandan L. Gray
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