TITLES AND ABSTRACTS OF PAPERS.

The article presents titles and abstracts of papers published in the January 1920 issue of the journal "Annals of the Association of American Geographers." The 'Southern Indiana,' includes the unglaciated portion of the state, the areas of Pre-wisconsin drift on each side of the unglaciated tract, and the margin of the area of Wisconsin drift border has been largely determined by geologic structure. In the title 'The Geographic Factors in the Distribution of Animals, with particular reference to the distribution of the land Reptiles of the Davis Mountains Region, Texas,' the distribution of the land reptiles of the Davis Mountains Region, Texas, shows that the zonal distribution is less than would be expected on the life-zone theory and that there is evidence that other geographic factors than climate are to be recognized.