• Robert B. Priddy


John Feingold, John Bacone, and Marion T. Jackson —The Indiana Natural Heritage Program

Victor L. Riemenschneider — Flora and Plant Communities of Spicer Lake Nature Preserve, St. Joseph County, Indiana

H. E. McReynolds— A Preliminary Annotated Bibliography of Aquatic Studies

Ronald A. Hellenthal— Prediction and Evaluation of Aquatic
Communities Using Environmental Data

W. Herbert Senft, Bryon G. Torke, and Harold Bonhomme—The
Indiana Lake Classification Program: The Condition of Indiana
Lakes and a Comparison of Trophic State Indices

Paul K. Kearns, G. J. Atchison and R. J. Vetter —Impact of
Heavy Metals on the Growth of Yellow Perch (Perca flavescens)
as Measured by RNA-DNA Ratios

Walter Weber— Pigeon-Borne People Diseases

Richard Whitman — Ecological Notes on Robackia demeijerei
(DIPTERA: CHIRONOMIDAE)— An example of a Well Adapted
Sand Dwelling Larval, Midge

James H. Keith and Lois Mittino Gray—A Preliminary Study of
the Occurrence of Broken Back Syndrome in Northern Cavefish
(Amblyopsis spelaea Dekay) at Spring Mill State Park, Mitchell,

Jerry H. Keith—The Ecology of the Troglobitic Beetle Pseudanophthalmus Tenuis Stricticollis: Recruitment and Fecundity Data

William Y. B. Chang—The Effect of Water Level Fluctuation on
Primary Productivity in Lake Monroe

William R. Chaney— Branch Abscission and Leaf Fall Relationships in a Mature White Oak

Edwin R. Squiers, David N. Allan, and Carrie L. Young—
Composition and Homogeneity within an Aspen-White Pine
Successional System in Kalkaska County, Michigan

Dixon H. Landers — Chemical and Biological Effects of Natural
Annual Dieback of Myriophyllum spicatum Upon the Littoral
Waters of a Large Soft Water Reservoir

P. C. MacMillan —Log Decomposition in Donaldson's Woods, Spring Mill State Park