AUTHOR'S KDITIO3ST. 



DEPARTMENT OF THE INTERIOR. 



UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY. 

 F. V. HAYDEN, U. S. Geologist-in-Charge. 



PRELIMINARY LIST 



OF 



WORKS AND PAPERS 



RELATING TO THE 



MAMMALIAN ORDERS OF CETE AND SIRENIA. 



BY 



JOEL ASAPH ALLEN. 



EXTRACTED FROM THE BULLETIN OF THE SURVEY, VOL. VI, No. 3. 



WASHINGTON, Angus* 30, 1,^82. 



