Articles

This paper deals briefly with the methods and results from three separate investigations that are in progress as to the quantity of rain‐water that percolates downward to the water‐table in the localities where it falls.1. Workers in the Department of Agriculture, under the direction of W. W. McLaughlin and in cooperation with the California State Department of Public Works, have used several rela

No abstract available.

It is doubtless known to many members of the Section of Hydrology that prior to the World War there existed an International Glacier Commission (la Commission Internationale des Glaciers) whose self‐appointed task it was to gather and publish the results of all available measurements showing the annual variations in length—advance or recession—of glaciers in different parts of the world. On this C

It is doubtless known to many members of the Section of Hydrology that prior to the World War there existed an International Glacier Commission (la Commission Internationale des Glaciers) whose self‐appointed task it was to gather and publish the results of all available measurements showing the annual variations in length—advance or recession—of glaciers in different parts of the world. On this C

During the past few years several important contributions to the study of evaporation from open water‐surfaces have been made. Each has applications to which it is peculiarly adapted, and each has its limitations. 

No abstract available. 

Abstract has not been submitted

No abstract available.

If the evidence presented in the body of this paper is accepted, there seems to be no question that eight stages in the metamorph-ism of coal can be recognized and explained by the processes that have been active in the earth coincident with the development of plant life on the land; and that at least six of these stages have left few if any marks on the composition or physical appearance of the s

No abstract available.

Abstract has not been submitted

No abstract available.