CONTENTS OF VOL/ XIII, PART I 



Page. 



1. — Osborn, H. F. Correlation between Tertiary 



Mammal Horizons of Europe and America . - 1-72 



2. — Dwight, Jonathan, Jr. The Sequence of Plum- 

 ages and Moults of the Passerine Birds of New 

 York. (Plates I-VII) ........ 73-360 



