ol 
. Detection of Niekel in Cobalt Salts, 8 min., 
A. R. Mippieton and H. L. Minune 
21. The Use of the Spectrophotometer in Chemical Analysis, 
MOTE set be es eel os GrorGE SpiTrzeR and D. C. Duncan 
22. The Different Methods of Estimating Protein in Milk. .Grorar Spirzer 
GEOLOGY 
2a. A New Cave Near Versailles, 5 mim..........7.......A. J. Bienny 
24. Loess Deposits in Vigo County, Indiana, 10 min....Wm. A. McBuru 
25. Volume of the Glacial Wabash River, 10 min...... Wn. A. McBetu 
26. A Geologic Map of the Terre Haute Region, 5 min....B. H. ScuocKen 
27. A Bibliography of Geographical Material, 10 min. ......B. H. ScHocKen 
28. Settlement and Development of the Lead and Zine Mining Region 
of the Upper Mississippi, 20 min................ B. H. SHocken 
29. A Few Science Wonders of the Cement Age, 15 min., 
Lerner et Se Petar he Lie a at ee F. W. Gorriies 
30. The Fauna of the Trenton and Black River Series of New 
BYZO 1 Koei ey eee ts AN Se ed 2 ae ge H. N. Coryenn 
MaTHEMATICS 
31. Gamma Coefficients with Applications to the Solution of Dif- 
34. 
ference Equations and Determination of Symmetric Func- 
tions of the Roots of an Equation in the Terms of the 
Cochieients, 2 mnie 8s. sua 25 Pee ee ae ARTHURS. HATHAWAY 
. Some Determinants Connected with the Bernoulli Numbers, 
Kk. P. Win.iamMs 
. Some Relations of Plane to Spherie Geometry, 
HOR rratins Senet eeepc Boar, WP bee PORE hn age me ce Davin A. RorHrock 
Puysics 
Some Notes on the Mechanism of Light and Heat Radiations, 
US MSTIN TLS: PAN Ace co gNPe AO ki. ONL he ee ly J James EH. Wyant 
35. A Standard for the M easurement of High Voltages, 
Orta ae 6 awe ees tee ena carne a. el, Ae C. Francis HarpDING 
. Ionization Produced by Different Thicknesses of Uranium 
OXAG 6s, MAT eee ee A | 8 Oe ea Epwin Morrison 
. Radioactivity of Richmond Water, 5 min.......... Epwin Morrison 
