Vol. V. 
JANUARY, 1918 
No. 1 
AMERICAN 
JOURNAL OF BOTANY 
OFFICIAL PUBLICATION OF THE 
BOTANICAL SOCIETY OF AMERICA 
CONTENTS 
The influence of illuminating gas and its constituents on certain bacteria 
and fungi. . , C. A. Ludwig i 
A bacteriological method useful for the study of other nvcroorganisms. 
Freda M. Bachmann 32 
The development of some exogenous species of Agarics. 
Gertrude E. Douglas 36 
PUBLISHED 
IN COOPERATION WITH THE BOTANICAL SOCIETY OF AMERICA 
BY THE 
BROOKLYN BOTANIC GARDEN 
At 41 North Queen Street, Lancaster, Pa. 
Entered as second-cla^s matter February 21, 1914^ at the post office at Lancaster, P^ennsylvania, 
under the act of March 3, 1879. 
