TABLE OF CONTENTS, VOLUME II, 1915 
No. I, January 
PAGE 
/ Investigations on the phylogeny of the Angiosperms. 5. Foliar 
evidence as to the ancestry and early climatic environment 
of the Angiosperms (with plates I-IV). 
Edmund W. Sinnott and Irving W. Bailey i 
The growth-forms of the flora of New York and vicinity. 
Norman Taylor 23 
/ The temperature of leaves of Pinus in winter (with four text 
figures) John H. Ehlers 32 
No. 2, February 
Some effects of the brown-rot fungus upon the composition of 
the peach LoN A. Hawkins 71 
Negative heliotropism of urediniospore germ tubes (with two 
text figures) F. D. Fromme 82 
A woody stem in Merremia gemella induced by high warm water 
(with two text figures) Frank C. Gates 86 
Picro-nigrosin, a combination fixative and stain for algae. 
Otis F. Curtis and Reginald H. Colley 89 
Normal and abnormal permeability W. J. V. Osterhout 93 
A simplified precision auxanometer (with three text figures). 
W. T. BoviE 95 
The mutations of Oenothera stenomercs (with four text figures). 
H. H. Bartlett 100 
No. 3, March 
Morphology as a factor in determining relationships. 
J. M. Greenman III 
The genetic relationship of parasites Frank Dunn Kern 116 
The experimental study of genetic relationships. 
H. H. Bartlett 132 
iii 
