Contributing Authors Include A. W. Thomas, T. H. Whitehead, R. W. Frey And Others.

Contributing Authors Include William P. Doelger, George D. McLaughlin, L. Sheard And Others.

Contributing Authors Include J. S. Rogers, Henry B. Merrill, R. G. Henrich And Others.

Contributing Authors Include J. M. Seltzer, F. F. Marshall, Henry B. Merrill And Others.

Contributing Authors Include Edwin R. Theis, Jerome M. Miller, E. O. Wilson And Others.