652 INDEX 



Vol. Page 

 Le Claire Beds of Port Byron, Illinois, Mcgalomus cana- 

 densis Hall in, W. H. Norton II, 12 



Limestone, S. Calvin Ill, 52 



Ledges, See Flora, Lichens. 



Lees, James H., Earth Movements and Drainage Lines in 



Iowa XXI, 173 



The Pleistocene of Capitol Hill XXIII, 167 



Some Geologic Aspects of Conservation XXIV, 133 



Some Fundamental Concepts of Earth History XXIV, 155 



Park Sites Along Des Moines Valley XXV, 569 



Some Features of the Fort Dodge Gypsum XXV, 587 



and Thomas, A. 0., The Ste. Genevieve Marls near 



Fort Dodge and their Fauna XXV, 599 



Leighton, Morris M., Additiolial Evidences of Post-Kan- 



san Glaciation in Johnson County, Iowa XX, 251 



Leaching of the Pleistocene Drifts of Eastern Iowa. . XXII, 19 

 Superimposition of Kansan Drift on Sub-Aftonian 



Drift in Eastern Iowa XXIII, 133 



Post-Kansan Erosion XXIV, 83 



The Buchanan Gravels of Calvin and the lowan 



Valley Trains XXIV, 86 



The lowan Glaciation and the So-called lowan Loess 



Deposits XXIV 87 



Leonard, A. G., Occurrence of Zinc in Northeastern Iowa. . I, IV, 48 



Satin Spar from Dubuque I, IV, 52 



Lansing Lead Mines II, 36 



Recent Developments in the Dubuque Lead and Zinc 



Mines Ill, 64 



Natural Gas in the Drift of Iowa IV, 41 



Lepidoptera of Linn County, G. H. Berry XXI, 279 



Lepidosaphes ulmi, See Webster XXI, 8 



Lepidostrobus from Warren County, J. L. Tiltou XIX, 163 



Lepus sylvaticus, Abnormal Pelage in, H. Osborn I, II, 116 



Letts, See Wells. 



Levee, New, Pioneer Plants on, F. E. A. Thone 



XXII, 135; XXIII, 423; XXIV, 457; XXV, 423 



Leverett, Frank, The Weathered Zone (Sangamon) be- 

 tween the lowan Loess and the Illinoian Till Sheet V, 71 

 The Weathered Zone (Yarmouth) between the Illi- 

 noian and the Kansan Till Sheets V, 81 



The Lower Rapids of the Mississippi River VI, 74 



Lice, Plant, Infesting Grass Roots, H. Osborn and F. A. 



Sirrine II, 78 



Lichenology, North American, Two Centuries of. Presi- 

 dential Address, 1904, B. Fink XI, 11 



Lichens Collected by Dr. C. C. Parry in Wisconsin and 



Minnesota in 1848, B. Fink 



in Mississippi Valley, B. Fink 



Iowa, B. Fink 



