TABLE OF CONTENTS 
PAGE 
New Species from Bolivia, collected by R. S. Williams—II, by 
H. H. Russpy. [J/ssued separately, in advance, 19 N, 
rgi2) . . : . : : . . . . 8&9 
The Polyporaceae of Mexico, by W. A. Murritit. ([lssued 
separately, in advance, 20 N,1912|  . z - 137 
Additions to the Paleobotany of the Cretaceous Formation on 
ong Island. No. III, by Arrnuur Hotutck. [Lssued 
separately, in advance, 20 N, 1972] . : . . 154 
