4 Proceedings of Indiana Academy of Science, 
Page 
The Uredinales of Indiana, III—H. 8S. Jackson................:.+2++ 165 
A Convenient Laboratory Plant Press—H. 8S. Jackson................ 183 
Indiana Plant Diseases, 1920—-Max. W. Gardner.................... 187 
adisrmermunedteV——), MY Van Hook:....tst a dasrax « .chie Ss 2 oo. y canta 209 
The Pyenidium of Cicinnobolus—J-M: Van Hook................... 215 
Aa Dreotyledonous Bean— J. Mio Van Hook:.-.:. .22....00.5 0.2) 5.2 oe 217 
Native Plants of White County, I1I—Louis F. Heimlich............. 219 
fiants New. toIndiana—Chas.C: Deam: 02. 6.40. sa... s Sale oe 225 
A Species of Cuseuta not hitherto reported from Indiana—T. G. Yuneker 229 
AUISiHoOk uadiana Mosses—uy GG, YuUmeKer a. +... 6 one aca ei eee 231 
A Curious Variation in the Common Milkweed, Asclepias syriaca L.— 
CSAC IT CUO ce me hetets Sie Dis care iti eretelecchs, ssa eeroie ree ince ee 243 
Some Evidence Indicating the Importance of Frost Action in Widening 
Vallevs— Glenn (Cul bertson™). 2 .v. 65 2. a. die 2d teed we Shue, oi 247 
Planation Stream Piracy—Clyde A. Malott...................0.00 00s 249 
What Puts “Pop” in Pop Corn?—R. H. Carr and E. F. Ripley....... 2. Agi) 
Recent Progress in the Use of Ozone in Ventilation—F. O. Anderegg.. 271 
Training Research Chemists in Indiana—E. G. Mahin............... 275 
Slow Recovery and Permanent Set in Copper, Aluminium, and Lead— 
PID EEtHB SOW OOGUTIEIE tt 1. ott eed es Sheree, Oa oan aan Se Leek 
A Resistance Radio Telephone—R. R. Ramsey...................... 287 
Note on Antennae Resistance—R. R. Ramsey....................... 289 
Ashone Wave Receiver—R. R.. Ramsey... <o28 fs oes 289 
Segregation and Recombination of the Genes for Tinged, Blood, Buff, 
Coral in Drosophila Melanogaster—Roscoe R. Hyde............. 291 
Behavior of the Gene for the Mutant Curved of Drosophila Melanogaster 
in Crosses Involving Genes in the Same and Other Chromosomes— 
FUOSCOPMEP ELV. Gs 3 ete claty oth sR oios gos om eeheeee Phe oan oe 301 
Notes on the Birds of Carroll, Monroe, and Vigo Counties, Indiana.— 
ARICOLINY s UV GETIATIM, 22 4. ys kc dicaid aeiece eveln ee = bn. suc ee B15 
