Front Matter
pp 0
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Increasing Reliability and Validity in Juvenile Delinquency Research
Balogh, Joseph K. pp 193-202
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Book Notices
pp 202-202
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Symposium on Population Pressure and Solutions for this Problem : Foreword
Diller, Oliver D. pp 203-203
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The Tidal Wave of People
Bush, Monroe pp 204-208
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Family Planning Programs in Asia
Dixon, M. S., Jr. pp 209-213
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Basic Ecological Principles as Related to Population Explosion
Gilbert, Gareth E. pp 214-218
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Population Control as a Motivational Problem
Groat, H. Theodore; Perry, Joseph B., Jr. pp 219-225
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Book Notice
pp 225-225
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Notes on the Natural History of the Leeches (Hirudinea) on the George Reserve, Michigan
Sawyer, Roy T. pp 226-228
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Response of the Guinea Pig Heart to Hypothermia
Wilber, Charles G.; Zeman, Frances J. pp 229-233
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A New Species of Batyle from Utah (Coleoptera: Cerambycidae)
Knull, Josef N. pp 233-234
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Radiocarbon Dates on and Depositional Environment of the Wasaga Beach (Ontario) Marl Deposit
Farrand, W. R.; Miller, Barry B. pp 235-239
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A Comparative Study of Antioxidants in Color Preservation of Fish
Gerrick, David J. pp 239-240
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The Ohio Academy of Science : Officers, Committees, and Academy Representatives for 1968-69
pp 241-245
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1968 Education Committee Report : Suggested Certification Requirements for Science Teachers
pp 246-255
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Circulation of the Ohio Journal of Science by States and Countries
pp 256-256
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Back Matter
pp 999
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