OKLAPIOMA ACADEMY OF SCIENCE 29 



Some studies with complement deficient guinea pig-s__H. S. Moore 



The migration path of the germ cells in fundulus 



J A. Richards and J. T. Thompson 



Nesting of mourning doves at No>rman in 1920- -Margaret M. Nice 



Some notes on winter birds around Norman in 1920-21 



Margaret M. Nice 



A comparison of the rate of diffusion of certain substances, 

 particularly the food materials enzymes and pro-enzymes 



Alma J. Neill 



Further observations on tonus rhythms in diaphragm muscle 



L. B. Nice and A. J. Neill 



A child's deviations from truth Sophia R. Ahschiller-Court 



The range of vocabulary at eighteen months of age 



• Miriam E. Oatman-Blachly 



Relation of science to art Lucile Carson 



The bank of Missouri J. Ray Cable 



A plan to reach the Orinoco sources T. A. Bendrat 



The cliff-dwellers in Mesa Verde Park, Colorado_-C. W. Shannon 



A trip across the Navajo desert Jaunita Ramsey 



Evidence on the Pennsylvania glaciation in the Arbuckle Moun- 

 tains S. Weidman 



Toyah, Texas, oil pool Bess Mills 



The Marietta syncline and its effect upon the physiography of 



Love County Fred BuUard 



Deep tests in southwestern Oklahoma-. Waldo Ports 



Shallow oil fields in Oklahoma F. G. Rockwell 



Protozoa of Colorado T. C. Carter 



The grand period of growth of root-hairs R. E. Jeffs 



