Curator Just addressed the Third Annual Conference of Midwest 

 College Biology Teachers held at the University of Notre Dame. 

 Dr. C. Earle Smith, Jr., Associate Curator of Vascular Plants, 

 spoke before a biology seminar at Northwestern University. 



The graduate course in vertebrate paleontology of the University 

 of Chicago was held in the Musuem as usual by Dr. Everett C. Olson, 

 Professor of Vertebrate Paleontology at the University and Research 

 Associate on the Museum's staff. In December Professor Ralph 

 Johnson of the University of Chicago brought his class in inverte- 

 brate paleontology to the Museum for a lecture by Dr. Rainer 

 Zangerl, Curator of Fossil Reptiles, and Dr. Eugene S. Richardson, 

 Jr., Curator of Fossil Invertebrates, on paleoecological principles 

 as illustrated in the Mecca project (see page 59). 



Curator Zangerl lectured on two occasions to classes in zoology 

 that visited the Museum from Indiana University and addressed 

 a zoology seminar at Indiana University on the paleoecology of 

 the Mecca shale in Parke County, Indiana. Curator Richardson 

 spoke on the Mecca project before the Northern (Illinois) Biology 

 Teachers Association. Albert W. Forslev, Associate Curator of Min- 

 eralogy, aided several times in identifying physical and chemical 

 evidence for the Crime Detection Laboratory of the Chicago Police 

 Department. The Museum supplied samples of coals and peats 

 to the Argonne National Laboratory (Lemont, Illinois) for use in 

 a study of radioactive mineral content of natural hydrocarbons. 



Rupert L. Wenzel, Curator of Insects, and Alex K. Wyatt, 

 Research Associate in the Division of Insects, are serving as co- 

 operating specialists in the insect-detection program of the United 

 States Department of Agriculture (Curator Wenzel is a specialist 

 on classification of histerid beetles and of flies parasitic on bats, 

 and Research Associate Wyatt is a specialist on Helothine moths). 

 Curator Wenzel continued to co-operate with the Board of Com- 

 missioners of Agriculture and Forestry of the State of Hawaii in 

 providing identifications of the histerid beetles that are being intro- 

 duced into Hawaii from various parts of the world in an effort to 

 control the horn fly, a pest that is responsible for greatly reduced 

 production in the dairy industry. Curator Wenzel has been ap- 

 pointed a Research Associate in the Department of Biology at 

 Northwestern University. D. Dwight Davis, Curator of Verte- 

 brate Anatomy, continued as Lecturer in the Department of Zoology 

 at the University of Chicago. 



Classes in botany, paleobotany, systematic botany, and biology 

 came to visit the Museum's herbaria from the University of Chicago, 

 University of Illinois, State University of Iowa, Loyola University, 



83 



