Table of Contents. 
The purposes of ethno-botany . ¥. W. Harshberger. 
Notes on grasses , George V. Nash. 
Notes on the North Aaeees species of Plagiochila 
(with plates Xv and XVI) : Alex. W. Evans. 
A simple freezing device (illustrated) W. ¥. V. Osterhout. 
Notes on some North American species of Parmelia 
Henry Willey. 
Remarks upon Paleohillia, a problematic fossil plant 
Theo. Holm. 
Notes from my herbarium, V Walter Deane. 
Notes on calcareous alge from Michigan 
Bak. ‘Peihalieds 
Notes on Isoetes riparia and I. saccharata_. 
T. Chalkley Patear. 
On some species of the genus Meliola_ . F.S. Earle. 
Filices Mexican, VI (with plate xv1I1) 
Geo. E. Déséapore, 
Aster tardiflorus and its forms. . ML. Fernald. 
The root-tubers of Isopyrum occidentale (illustrated) 
. T. McDougal. 
Albert Nelson Prentiss (with portrait, plate Hix): is 
Geo. F. a aca 
Contribution to the life-history of Sequoia sempervirens 
(with plate xxIv) . : Walter Robert Shaw. 
Notes concerning the development of Nemalion multifi- 
dum (with plates xxv and xxvi) Grace D. Chester. 
Synopsis of North American Amaranthacee, V_ . 
E. B. Uline and W. L. Bray. 
A study of some ae = characters of N. Am. Gra- 
minez, VI (with plates xxvil and Xxvill) Theo. Holm. 
A synopsis of the American species of Ctenium (with 
plate xxix). ; Fared G. Smith. 
The rate and mode of oeneth of banana leaves. . 
Walter Mecwstl 
253 
275 
280 
