VOLUME FIFTEEN NUMBER ONE 



JOURNAL 



OF 



ENTOMOLOGY 



AND 



ZOOLOGY 



MARCH, 1923 



PUBLISHED QUARTERLY BY 

 POMONA COLLEGE DEPARTMENT o/ ZOOLOGY 



CLAREMONT, CALIFORNIA, U. S. A. 



CONTENTS 



Page 



A Model of the Nasal Chamber of a White Mouse at Birth — 



Ida Merrill, E. Schoonover 1 



North American Species of Mimetus — R. V. Chamberlin 3 



The Nervous System and Sense Organs, XII — W. A. Hilton. ... H 



Entered Claremont, Cal.,Po8t-Office Oct. 1, 1910, as second-clasa matter, under Act of Congress of 



March s, 187U 



