CONTENTS. 



PAGES 



I. The Recovery of Vegetation at Kodiak, by Robert 



F. Griggs....- 1 



II. Are the Ten Thousand Smokes Real Volcanoes? by 



Robert F. Griggs, 97 



III. The Great Hot Mud Flow of the Valley of Ten Thousand 



Smokes, by Robert F. Griggs 117 



IV. The Character of the Eruption as Indicated by its 



Effects on Nearby Vegetation, by Robert F. Griggs. . 173 



V. The Nitrogen Content of Volcanic Ash in the Katmai 



Eruption of 1912, by J. W. Shipley 213 



VI. The Water Soluble Content, the Ferrous Iron Content 

 and the Acidity of Katmai Volcanic Ash, by J. W. 

 Shipley 224 



VII. Ammonia and Nitrous Nitrogen in the Rainwater of 



Southwestern Alaska, by J. W. Shipley 230 



VIII. A Study of Temperatures in the Valley of Ten Thousand 



Smokes, by Jasper D. Sayre and Paul R. Hagelbarger 249 



IX. The Beginnings of Revegetation in Katmai Valley, by 



Robert F. Griggs 318 



X. Birds of the Katmai Region, by James S. Hine 475 



Index.. 487 



