TABLE OF CONTENTS. 
Undescribed plants from Guatemala and other Central 
American Republics, XIV (with plates I-11, XXXVI) 
Fohn Donnell Smith. 1, 281, 
Notes from my herbarium Walter Deane. 12, 150, 345, 
The crystalization of cellulose . Duncan S. Fohuson. 
Noteworthy anatomical and physiological researches, 
23, 118, 222, 407,464, 
The periodic reduction of chromosomes in living or- 
ganisms . : : F.C. 
Anatomy of the genus Cueéx Theo. Holm. 
Anatomy of Velloziee . . Iheo. Holm. 
Ombrophilous and Be ircokehiv organs of plants 
Theo. Holm. 
Some recent cell literature .  ¥. &. Humphrey. 
The rhizoids of filamentous alge Bertha Stoneman. 
Investigations on bacteria : H. L. Russell. 
The littoral flora of Belgium Gilbert H. Hicks. 
Nature and life history of starch grains . 
f 7 Say if WitDou gat 
Arctic and Alpine plants. i. £ate. (201m. 
Root tubercles on Ailanthus ‘ Theo. Holm. 
Studies upon galls : : ‘ Theo. Holm, 
The combined effects of geotropism and heliotrop- 
ism : D. T. MacDougal. 
New and Aotew ithe Composit from Guatemala (with 
plates v, v1) : Fohn M. Coulter. 
A preliminary paper on Contacts: with description of a 
new species (with plate VI!) DeAlton Saunders. 
Notes on our Hepatice, III Lucien M. Underwood. 
The flora of Mt. Mansfield ‘ W. W. Eggleston. 
Apparatus for physiological botany (with plates 1x—x11) 
W. C. Stevens. 
[iii] 
