30 
On a New Complex Cyanogen Compound................-. A. R. Middleton 
The Determination of Endothermic Gases by Combustion...A. R. Middleton 
Mathematics 
Methods in Solid Analytics. 15 minutes..............4 Arthur 8. Hathaway 
Motion of n Bodies; “DOWMIMUMLeS os ere auc iors = ns cscusieds i tetors Arthur 8S. Hathaway 
Discussion of the Regular Inscribed Pentagon. 5 minutes...John C. Gregg 
If the Bisectors of Two Angles of a Triangle are Equal, Those Angles 
arechiqals: ‘5, amines f5 Sorsto a crore a oeoteeicee Gee ieee ere exe John C. Gregg 
Physics 
Direct Reading Accelerometers. 20 minutes ...............¢. C. R. Moore 
Recent Work in Wood Physics. 10 minutes ................. W. K. Hatt 
Expansion of Paving Blocks, slOsminwtes reese sie oo 6 is leielererale W. K. Hatt 
Notes on the Strength of Concrete Building Blocks. 10 minutes 
H. H. Schofield 
Sliproteelveted. Jom. 9 LOMmiIMIbeS ae = eto eines eis iota «eee Albert Smith 
Rolarization of Cadmimnm”G@ellse..c ccc ccreeuteseieie eeeeierctee Rolla R. Ramsey 
Investigation of a Point Discharge in a Magnetic Field....Oscar W. Silvey 
Thee Menacity, Of Gelatine: yy 2a. oc.c cic piste cee cuore isisic lee ef oe Arthur L. Foley 
Objections to LaPlace’s Theory of Capillarity............ Arthur L. Foley 
Cohesion of Water as Modified by Certain Dissolved Salts. 10 
POUTVTIG OSS soc, steieians io: o ersttere/avere eretoce Pte eisietore ayarerotecetoraasiele tens Edwin Morrison 
Geology and Geography. 
Some Features of Delta Formation. 15 minutes........ Charles R. Dryer 
A Physiographic Survey of an Area Near Terre Haute, Ind. 25 min- 
ALTOS sceceice. sie ro even’ a) pe jars iauei'a, slietoum ete areis, © Charles R. Dryer, Melvin K. Davis 
The Collecting Area of the Waters of the Hot Springs of Hot Springs, 
ATES © ALD: MINES.) os Syateeiatate ot ecare A. H. Purdue, University of Arkansas 
The Geographical and Geological Distribution of Some Pleistocene 
Misia reicterst helen shove. ot, ase ete avatene O. P. Hay, U. S. National Museum 
On the Restoration of Skeletons of Fossil Vertebrates.......... 0: BP. Bay 
Where Do the Lance Creek (“‘Ceratops”) Beds Belong, in the Cretace- 
OUS: OF ALOT ELALY, Gis soa A ereecte law tei ccade iiever wre do ascre apnea ene Oliver P. Hay 
Paleontology and the Recapitulation Theory. 50 minutes....E. R. Cumings 
The Tippecanoe, an Infantile Drainage System. 10 minutes..W. A. McBeth 
Observations on Cyclones and Anti-Cyclones of North Temperate Lati- 
LUGES> CAO VMINUTES sen cpece us ooo, rustic. cits oleropele era soreteieratetsiatctst ee W. A. McBeth 
Zoology. 
A Paired Entoplastron in Trionyx and Its Significance. 15 min- 
URES c4 ate Rietene steleerardedrenae Henry H. Lane, Oklahoma State University 
