36 ANNUAL REPORT OF THE 



By exchange; about 100 specimens of fossils from Dr. D. C. 

 Barton, St. Louis, Mo., and fifty-two species of fossils from Prof. 

 W. H. Twenhofel, Lawrence, Kansas. 



By purchase; the Finkelnburg collection of about 500 specimens 

 representing eighty-six species of Upper Cambrian fossils, and 

 another collection containing about 300 specimens of Palaeozoic 

 fossils from southwestern Virginia. 



