^oi.I OCTOBER, 1914 No. 8 
AMERICAN 
JOURNAL OF BOTANY 
OFFICIAL PUBLICATION OF THE 
BOTANICAL SOCIETY OF AMERICA 
CONTENTS 
studies of the development of the Piperaceae. II. The structure and 
seed-development of Peperomia hispidula .... Duncan S. Johnson 357 
On the correlation betvreen somatic characters and fertility. II. Illustra- 
tions from Phaseolus vulgaris J. Arthur Harris 398 
The effects of acid and alkaline solutions upon the water relation and 
the metabolism of plants. , Alfred Dachnowski 412 
PUBLISHED 
IN COOPERATION WITH THE BOTANICAL SOCIETY OF AMERICA 
BY THE 
BROOKLYN BOTANIC GARDEN 
At 41 North Queen Street, Lancaster, Pa. 
Entered as second-class matter February 21, 1914. at the post office at Lancaster, Pennsylvania, 
under the act of Mnrrh 3, T870. 
