*10. 
slits 
¥*12. 
*13. 
*15. 
*16. 
live 
* * # 
CoS tae 
Or Sak 
esting seed Corm Dy Specitic, Gravity: ole ety oe et tis onsen once wi Sicle2.) o ctw ae te a ene H. A. Dunn 
Notes on the Flora of Cass County, Indiana, 10in........... 0.2.2... 20. eee ccc sees Robert Hessler 
BeanrAn thracnase: Ons. <2) 5.5% - sesaayscieotctente seats ciel ite cae le os hed: Ree ee ae M. F. Barrus 
Mndopby tie Al eessal Ommlye ys, A ce cteta ENC restese ler ckeae Mena reese ove eTn Srv rere) Sage cian EE Jacob Schramin 
Reportior WorkineCorn Pollination ;om.44.c)c cee ceeds ian anielt ce ea ceee ap ee eee M. L. Fisher 
Effect of the Recent Drought Upon Forest Trees, 10m..................-0000--eeeeeees Stanley Coulter 
Difference Between Pinus taeda and Pinus palustris, 10m.....................22... Katherine G. Bitting 
Am Rorestehroblem=¥LOiie a) Seamer sc eet aero eis caastel-or ae tA Ricescn ae na ee da aaa W. H. Freeman 
IBOLanVEinaineReehiscriool al Onike tee vet Motes omc od Aa ee mas 22s kare rae eter E. C. Snarr 
The Killing of Mustard and Other Noxious Weeds in the Grain Fields of South Dakota, 10m....E. W. Olive 
heyblankton ofan (Underground | streamin. cl, oo. cree oe he asia 5 ysl so. crsrete ht ee a Will Scott 
Anthracnose on Cereals and Grasses.............-.....-5. ..-+e+......-A. D. Selby and T F. Manns 
CHEMISTRY AND MATHEMATICS. 
‘She Meyer Moleculan Weight Calculation, LOm... 05 owe. ee eas cette stance eco etnsle eee Percy N. Evans 
The Vapor Pressure Method of Determining Molecular Weights, 15m...................... J. B. Garner 
Reaction of Sulphurie Acid Interpreted Upon the Basis of the Electrolytic Dissociation Theory, 10m. . 
5 Se Er rt EE OE tee elie eae, Nd yh Bes ech ne 15/0, ae nn Tees HEC Sel - Me A. Ruth 
-Action of Alpha Bromacylesters on Sodium Acetylacetone, 10m........... . A. Reddick 
Action of Alpha Bromacylesters on Sodium Benzoylacetone,10m............. ay B. ‘Gaviiee aay G. J. Fink 
Relation of Fats to Moisture Content of Butter, 10m.................-....0.0 0s ce eeaee O. IF. Hunziker 
NotevoniaiClaesiof Definitions: Sm. Wc cat. carte cas Acie a roles sielaih de Rasps Miche eines ote Pe F. R. Higgins 
A Graphical Representation of the Epsilon-Delta Definition of the Limit of a Function and Continuity, 
EVM ME Nae ratchkc eh Ataras Sieg Mele a eas Goh Meese Se ea ee se Sere ee Bees a soe 6 die eee eg PINS 
The Beckmann Rearrangement. .... ieee ® re AB Scan Reta staaes adele Genner 
The Use of the Polariscope in Testing Hich Tension Jnculaters. ... oh pre oace. 4c el Oa ea rs 
A Contribution to the Chemistry of Mucoid.... OE TES ce. Je es Be May 
The Determination of Lead by Titration of Leal C bromaté si i Dafitee RUE ee _.C. B. Brooks 
An Evolution Method for the Determination of Sulfur in Sulfates and Sulfides Ue ele) Siler ys 
The Deterioration of Platinum through Ignition of Phosphates. . : % _....R. E. Lyons 
GEOLOGY. 
Probable Origin of Depressions in the Mesa South of the Tijeras Canyon, New Mexico, 10m. Albert B. Reagan 
Headwaters of ‘the ‘Tippecanoe River, 10m.2.)7.. 0026 0b cs cite votives Seles clceleine ween J. T. Seovell 
Origin of Cyclones and Anticyclones of Temperate Latitudes, Wn. OE CRRA nea W. A. McBeth 
Some Drainage Modifications in Southeastern gpsians oe a ih oes 1 BRAN oe Oe W. M. Tucker 
Ol Survevaor Daviess (County: .+.0%.« sens ccs capes eieteale eo Sd phere er ee L. C. Snyder 
Caves and Cave Formations of the Mitchell Limestone of Indiana... sed fe eee I’. C. Greene 
ZOOLOGY. 
ithe Nasal Muscles’ of the. Reptiles; 10ms.2...2<2< ca yee este oe eee ede «caine cd Re H. L. Bruner 
SwellsMeohanismsiot! Vertebrates:t10mi..;,.; 5 «+00 cas ten cee taetacioereraenm tle aee tenes H. L. Bruner 
Life Zones of Indiana as Illustrated by the Distribution of Orthoptera and Coleoptera Within the State, 
LLIN SAO el eae epee SPR eRe EME Aen sg he Ror athens ayzveinaialy sO). ee 
Animals of the Olympic Peninsula, Washington, 10m......................-0-e-0000e Albert B. Reagan 
The Effect of Successive Removal on the Rate of Regeneration...............-..-0.-0008 Charles Zeleny 
IEFOPONUIOMAN EDOM ETAUION:. «, ./ieio0.o.6/ doa <nsslciet a evolin yal etbr< dubai tte fetaie esters eye eer na aie M. M. Ellis 
Curves Representing the Rate of Regeneration................-2.00-secepecercccsscveres M. L. Durbin 
Circulation of Mixed Blood in the Adult Reptile and Amphibian as well as in the Fetal Mammal and Bird 
Boe eer Neto exc on yrane cft.8, 2 cyerepe ius lucha aoderetaleta te hel aRese ical ery ote seats aR cs Re te A. G. Pohlman 
*Papers read. 
