Front Matter
p. 0
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The Cephalopod Genera Cyrtendoceras and Oelandoceras
Foerste, Aug. F. pp. 163-176
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Nelson Ledge State Park
Ver Steeg, Karl pp. 177-193
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The New Trigonocarpus from Ohio
Berry, Willard pp. 194-196
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Starch Synthesis in the Variegated Leaves of Pelargonium
Chapman, A. G.; Camp, W. H. pp. 197-217
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The Reactions of Certain Cladocera to Colored Lights of Equal Intensity
Lumer, Hyman pp. 218-231
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Dominance in Man, with Especial Reference to Polydactylism
Dehus, Dolores; Snyder, Laurence H. pp. 232-236
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Ranges of pH Tolerance of the Lemnaceae
Hicks, Lawrence E. pp. 237-244
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The Rebuilding of Mounds of the Ant, Pogonomyrmex Occidentalis, Cress
Cole, Arthur C., Jr. pp. 245-246
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Nest of the Ant, Formica Subpolita Mayr, in the Western United States
Cole, Arthur C., Jr. pp. 247-248
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A Comparison of the Alimentary Canals of the Active and Hibernating Adults of the Mexican Bean Beetle, Epilachna Corrupta Muls
Burgess, Emory D. pp. 249-262
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Back Matter
p. 999
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