628 INDEX 



Vol. Page 

 Citlalteptl and Popocatepetl, Volcanic Phenomena about, 



C. R. Keyes XIV, 229 



Cladocera, Des Moines, B. 0. Gammon XIII, 267 



Manitoba, L. S. Ross IV, 154 



See Daphnia. 



Cladonias, American, B. Pink XII, 15 



Claclosporium cnrpophilum von Thuemen, L. H. Pammel. . 1,77, 92 

 Clark, Clarissa, See Pammel, Edna, and Clark. 

 Clark, H. B., See Pammel, Macdonald, and Clark. 

 Clark, W. H., The Use of a Ballistic Galvanometer and a 

 Pendulum for Measuring Rapidly Fluctuating Re- 

 sistances XVIII, 105 



Clarke, James Frederick, The Disparity between Age and 

 Development in the Human Family, Illustrated by 



Pronounced Cases Due to Thyroid Malformation XIII, 257 



Clastoptera, Study of the Genus, E. D. Ball Ill, 182 



Clay County, See Birds. 



Clays, Analyses of, For Paving for Cedar Rapids, C. O. 



Bates , IX, 61 



Brick and Other, of Des Moines, C. R. Keyes I, II, 29 



of Indianola Brick, Tile and Pottery Works, L.. A. 



Youtz Ill, 40 



Clear Creek Canon, Colorado, Introduced Plants of, L. H. 



Pammel XXI, 119 



Clean Tillage, See Flower Buds. 



Clear Lake, See Waterlily. 



Clearman, Harriet M., A Geological Situation in the Lava 



Plow, with Reference to the Vegetation XI, 65 



Clinton, Outlier of, in Dubuque County, J. V. Howell XXIII, 121 



Cloud-burst in Des Moines County, M. Ricker VI, 66 



Clover, Alsike, See Rust. 

 Insects, See Insects. 



Pollination of, L. H. Pammel and C. M. King XVIII, 85 



Red, Floral Development of, J. N. Martin XIX, 129 



Red, Pollination of, L. H. Pammel and L. A. Kenoyer XXIV, 357 



Red, Variation of, Edna C. Pammel and Clarissa Clark XVIII, 47 



Seed, See Seeds. 



Sod, See Flower Buds. 



Stand of. See Loess. 



White Sweet, Mclilotus alba. W. E. Rogers XXIV, 415 



Annual, L. H. Pammel and C. M. King XXV, 249 



Coal, See Bering River. 

 Coal Basin, See Mystic. 

 Coal Bearing Strata of Central Iowa, Structure of, C. R. 



Keyes 1,11, 27 



Coal-fields, Continental Interior, Provincial Unity of, C. R. 



Keyes XXV, 545 



Coal Measures, Deposltional Equivalent of Hiatus at Base 



of, C. R. Keyes VIII, 119 



