say that tl 



The speaker discussed especially fossil organisms from the 



Dr. H. M. Hall spoke very interestingly on the rubber con- 



Dr. Hall with associates, has had under special investigation 

 during the past few years. It has been found that rubber of 



areas of Colorado, Nevada and Utah. The present stand of 

 from the tree, Hevea braziliensis, which is grown in the tropics, 



in the United States. 



Dr. Hall also reported on preliminary studies of the rub 



