Proceedings of the South Dakota Academy of Science, Volume - 52, Year - 1973.
TABLE OF CONTENTS 
AUTHOR NAME 
PAGE
Minutes of the Fifty-Eighth Annual Meeting of the South Dakota Academy of Sciences.
6
Committee Reports:
Junior Academy 
6
Auditing Committee 
6
Conservation Committee 
6
Membership Committee 
6
Report by the Editor 
6
Junior Academy 
7
Collegiate Section 
7
Resolution Committee 
7
Nominating Committee 
8
AAAS Report 
9
New Business 
9
Treasurer's Report 
11
Minutes of the Collegiate Section 
12
Minutes of the Junior Academy of Science 
17
Membership Lists:
Senior Academy 
15
Collegiate Section 
18
Junior Academy 
19
Presidential Address 
20
Tribute to W.O. Read 
25
Research Papers Presented at the Fifty-Eighth Annual Meeting of the South Dakota Academy of Science:
Dissolved Organic Matter, Seston, and Zooplankton Cycles in Lake Poinsett, South DakGta. 
Richard L. Applegate, Andrew J. Repsys and Stephen B. Smith 
28
Estimating Quantity and Quality of the Biomass of Benthic Protozoa. 
Raymond D. Dillon and John T. Hobbs 
47
Chronic Selenite Toxicity in Cattle. 
O. E. Olson 
50
Twin Shoots From Spring Wheat Seeds. 
Walter Morgan, Chris Okonkwo and Eugene Whitehead 
59
Differential Morphogenetic Responses of Carrot Calus to Naphthaleneacetic Acid, 2,4-Dichlorophenoxyacetic Acid, and Tordon in Vitro. 
C. H. Chen and D. J. Holden 
67
Comparison of Leaf Size and Leaf Life-Span Among Selected Tall and Semidwarf Spring Wheat Cultivars. 
G. W. Buchenau and F. Bode 
72
Response of Holstein Cows to Leptaden Feeding. 
Sitakantha Dash and Howard H. Voelker 
78
Effects of Inbreeding and Line Crossing on Growth and Development of Holstein-Friesian Cattle. 
Howard H. Voelkner and Sitakantha Dash 
84
Fishes of Lacreek National Wildlife Refuge, Bennett County, South Dakota. 
Charles J. Zimmerman, Jr.,and Harold H. Burgess 
88
Abnormal Embryos in Eggs of Pheasants Given 2,4-D or PCB. 
Kenneth E. Solomon, Robert B. Dahlgren and Raymond L. Linder 
95
Tracer Selenium-75 Studies with Rats Fed a Low Selenium Diet With and Without Vitamin E. 
A.W. Halverson, I. S. Palmer and D.T. Tsay 
100
An Example of the Lack of Parallelism in the Metabolism of Sulfur and Selenium. 
I.S. Palmer 
108
Effects of Diethylstilbestrol on Reproduction in the Prairie Dog. 
Donald G. Pfeiffer and Raymond L. Linder 
112
Seasonal Changes in the Drift and Benthic Macroinvertebrates in the Unchannelized Missouri River in South Dakota. 
Timothy C. Modde and James C. Schmulbach 
118
A Comparison of the Macroinvertebrate Aufwuchs in the Unstabilized and Stabilized Missouri River. 
Allen E. Nord and James C. Schmulbach 
127
Ages, Lengths and Weights of Paddlefish Caught in Gavins Point Dam Tailwaters, Nebraska. 
Randy J. Boehmer 
140 
A Practical High-Intensity Irradiation Chamber. 
James G. Ross and Eugene I. Whitehead 
147
Computer Investigation on Mersenne Numbers. 
Barbara J. Baskerville and David Ballew 
152
Some Weaker Forms of Ellipticity. 
Emil F. Knapp 
159
The Existence and Construction of Operational Sequences in Certain Manufacturing Processes. 
Richard L. Schwaller 
162
Unsaturated Hydraulic Conductivity for Water Management Measured in Situ. 
L. R. Stone, T. C. Olson and M. L. Horton 
168
Effects of Urbanization on Stream Runoff in Rapid City. 
Perry H. Rahn 
179
Movement of Fall- or Winter-Applied Nitrate in Selected South Dakota Soils. 
D. G. Moore and E. M. White 
189
Fused Sediments Near Pine Ridge, South Dakota. 
Robert L. Stach and J. C. Harksen 
194
Deposition of Cave Material in Wind Cave. 
Carole L. Loskot 
200
Monitoring Flood Damage With Satellite Imagery. 
L. A. Benson and F. A. Waltz
207
Fermat Numbers. 
Jane Vande Bossche and David Ballew 
212
Triangular Numbers and the Calculation of Roots. 
J. E. Hutter and David W. Ballew 
220
Density and Limit Properties of Euler's Phi-Function. 
Janell Case and David Ballew 
221
Ramanujan's Formulae for Pi. 
Dennis Gusse and David Ballew 
230
Some Factors Affecting the Nesting Success of Pelicans and Cormorants in South Dakota. 
Algirdas Greichus and Yvonne A. Greichus 
241
Abstracts of Papers Presented at the Collegiate Section. 
249
Abstracts of Papers Presented at the Senior Section.
254
Papers Read by Title.
272