1973] 
Benforado & Kistler — Araneus diadematus 
99 
Acknowledgements 
This work was carried out in the laboratories of the North Caro- 
lina Department of Mental Health and was supported by Grant 
Number GB 25274 from the National Science Foundation to Peter 
N. Witt. The authors gratefully acknowledge the assistance of Dr. 
Peter N. Witt during all stages and the assistance of Mrs. Mabel B. 
Scarboro during the period of laboratory work. 
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