378 
IOWA ACADEMY OF SCIENCE Vop. XXIX, 1922 
Rowe, Paul R., Decorative Markings on Some Fragments of Indian 
Pottery from Mills County, Iowa 53 
S 
Salt Vapors, Coefficient of Diffusion of, in the Bunsen Flame, George 
E. Davis 155 
Schoewe, Walter H., Till-like Deposits South of Kansas River in Doug- 
las County, Kansas 61 
Scribofacilograph for Labeling Kymographic Tracings, T. L. Patter- 
son 169 
Sedimentation in Iowa, Status of, A. C. Trowbridge 127 
Seed Coat, See Mellilotus alba. 
Selenium Crystals, Isolated, A Redetermination of the Principal Reflect- 
ing Powers of, E. P. Sieg 131 
Shrubs and Trees, See Germination. 
Sieg, E. P., Redetermination of the Principal Reflecting Powers of 
Isolated Selenium] Crystals 131 
Silver Films, See Hall Effect 
Sociology as a Science, Hornell Hart 230 
Soil Microorganisms, See Microorganisms. 
Solanaceae, See Mosaic. 
Solubility and Polarity, Wm. Kunerth 135 
Specific Resistance, See Hall Effect. 
Stainbrook, M. A., See Thomas and Stainbrook. 
Standardizing Solutions, See Titanous Solutions. 
Steinberg, J. C., Hall Effect and Specific Resistance in Evaporated 
Films of Silver, Copper and Iron 153 
Stewart, G. W., Nodal Distances in Acoustics 149 
Stewart, G. W., A Variable Single Band Acoustic Filter 150 
Stigma, See Lily, Easter. 
Stoner, Dayton, Behavior of Trapped and Banded Birds 225 
Stromsten, Frank A., Nest-digging and Egg-laying Habits of Bell’s 
Turtle 229 
Sulfurous Acid, Electrometric Titration of, with Permanganate, W. S. 
Hendrixson and E. M. Verbeck 361 
T 
Tablet, See New Albin. 
Tarantula in Captivity, Habits of, Albert Hartzell 187 
Telephone Receiver and Transmitter, New Kind of, C. W. Hewlett.. 151 
Thomas, A. O., Some New Paleozoic Glass-Sponges from Iowa 85 
Thomas, A. O., Notes on Some Mammalian Remains Reported in Iowa 
during the Past Year 129 
Thomas, A. O., and Stainbrook, M. A., Status of Certain Rhynchonel- 
lid Brachiopods from the Devonian of Iowa 93 
Till, See Kansas River. 
Titanous Solutions, Electrometric Standardizing of, W. S. Hendrixson 
and E. M. Verbeck 365 
Titration, See Sulfurous Acid. 
Trowbridge, A. C., The Status of Sedimentation in Iowa 127 
