592 
INDEX TO VOLUME III 
Physiological observations on alkaloids, 
latex and oxidases in Papaver somni- 
ferum, i 
Phytolacca? javanica, 583 
Pickett, F. L. The wandering tapetal 
nuclei of Arisaema, 461 
Pinus Banksiana, host of Pendermium 
cerebrum, 13 
Pisum sativum, orientation of roots of, 
274 
Potato tubers, oxidase and peroxidase in, 
6 
Pritchard, Frederick J. Correlations 
between morphological characters and 
the saccharine content of sugar beets, 
361 
Proteins and carbohydrates, specificity of, 
in relation to genera, species and va- 
rieties, 91 
Pubescence, variable, in plants, 470 
Pulling, Howard E. The angular 
micrometer and its use in delicate and 
accurate microscopic measurements, 
393 
Ouercus alba, growth of roots of, 384 
Raphidophora merrillii, 66; region of 
greatest stem thickness in, 65 
Relation of oxidases and catalase to 
respiration in plants, 223 
Rei CHERT, Edward Tyson. The spe- 
cificity of proteins and carbohydrates 
in relation to genera, species and 
varieties, 91 
Repeating spores of Gymnosporangium, 
Respiration in plants, relation of oxi- 
dases and catalase to, 223 
Rhamnus thea, 584 
RiCKER, P. L. Two types of variable 
pubescence in plants, 470 
RiGG, George B. The toxicity of bog 
water, 436 
RoBBiNS, William J. Influence of 
certain salts and nutrient solutions on 
the secretion of diastase by Penicillium 
Camembertii, 234 
Roots, exchange of ions in, 47; orienta- 
tion of primary, 274; growth of, 384; 
orientation of secondary, 393 
Rosen, Harry R. The development of 
the Phylloxera vastatrix leaf gall, 337 
Rusts found upon the Onagraceae, 527; 
Index to, 561 
Schizostachyum diffusum, 62; lima, 62; 
lumampas, 63; textorium, 64 
Scirpus chinensiSf 584 
Seaweeds of Hawaii, 474 
Significant accuracy in recording genetic 
data, 211 
SiNNOTT, Edmund W. (See Bailey, I. 
W., 23) 
Solidago chinensis, 585 
Sonchus asper, peroxidase in, 3 
Specific action of barium, 481 
Specificity of proteins and carbohydrates 
in relation to genera, species and 
varieties, 91 
Sphagnum bogs, Lysichiton camtschat- 
cense in, 189 
Spore mother cells in Catharinea, 456 
Sporophyte of Treubia, 261 
Stevens, O. A. Notes on the distribu- 
tion and growth of North Dakota 
Cuscutae, 185 
Stimulation, effect of, on the leaves of 
Dionaea, 68 
Stockberger, W. W. (See True, R. 
H., I) 
Stewart, Alban. Notes on the anato- 
my of Peridermium galls, 12 
Sugar beets, correlations between mor- 
phological characters and saccharine 
contents, 361 
Tapetal nuclei of Arisaema, 461 
Taraxacum officinale, used in studies on 
exosmosis, 484; on permeability, 562 
Tension of tissues, a study of permea- 
bility, 562 
Tetradapa javanorum, 585 
Thompson, Walter P. The morphol- 
ogy and affinities of Gnetum, 135 
Tilia americana, growth of roots of, 384 
