October 5, 1906.] 



SCIENCE. 



429 



which he gained of the mountain in these 

 two expeditions he freely imparted to 

 Prince Lonis of Savoie, Duke of Abruzzi, 

 and thus ensured the success of the Italian 

 expedition. The reports of his expeditions 

 to Mount St. Elias are found in a paper 

 printed in the National Geographic Maga- 

 zine, and in the reports of the United States 

 Geological Survey. In these papers the 

 glaciers of Mount St. Elias are described, 

 and he has written at least ten other papers 

 on glaciers of North America and on glacial 

 action, besides his well-known book on these 

 subjects. 



Professor Russell became an authority 

 not only on glaciers and the effects of ice 

 and water upon the configuration of the 

 earth, but an authority also on the forces 

 which are the cause of earthquakes and vol- 

 canic action. When the Island of Mar- 

 tinique and St. Vincent were visited by the 

 terrible eruptions of Mt. Pelee and La 

 Soufriere in 1902, he was asked by the 

 National Geographical Society to go to the 

 islands and observe the phenomena. In 

 addition to his report to the society, and 

 his book on volcanoes, he is the author of 

 ten or more papers on volcanic phenomena 

 and their results. 



During the summers of 1904 and 1905, 

 Professor Russell worked for the Michigan 

 State Survey in the southern part of the 

 northern peninsula of Michigan. The re- 

 port of the work of 1904 has been pub- 

 lished, but that of 1905, although finished, 

 is still unprinted. It is entitled 'Surface 

 Geology of Menominee, Dickinson and Iron 

 Counties of Michigan.' 



Another paper on the geology of Mich- 

 igan, entitled 'On the Drumlin Area of 

 Northern Michigan,' was read convocation 

 week, 1905, before the Geological Society 

 of America at Ottawa. It was at that 

 meeting that Professor Russell was chosen 

 president of the society. We are all 



familiar with his work on the water supply 

 of Ann Arbor, the report of which was pub- 

 lished by the city council, 1905. 



There remain three unpublished papers 

 to be mentioned. One of these is the folio 

 to accompany the map of the United States 

 Survey of the Ann Arbor Quadrangle. 

 This deals with the marl deposits and the 

 hard rocte of the region. Another is the 

 paper on 'Ideals Concerning Municipal 

 Water Supplies,' which he read at the 

 meeting of the Michigan Academy of Sci- 

 ence, March, 1906, and which will appear 

 in the reports of the academy. And finally 

 there is a paper of 12,500 words in type- 

 written form, which he probably intended 

 to use after revision as his presidential ad- 

 dress at the next meeting of the Geological 

 Society of America. It is entitled 'Con- 

 centration as a Geologic Principle.' In 

 addition to these there remains a large 

 amount of manuscript on the volcanoes of 

 Martinique and St. Vincent, apparently de- 

 signed to be used in book form. 



In addition to his many scientific re- 

 ports, papers and monographs, represented 

 by more than one hundred titles, he pub- 

 lished five books : ' Lakes of North America, ' 

 1895; 'Glaciers of North America,' 1897; 

 'Volcanoes of North America,' 1897; 

 'Rivers of North America,' 1898; 'North 

 America,' 1904. 



His first book, aside from the mono- 

 graphs which have been mentioned, was 

 not written until he had passed fifteen 

 summers in the field, studying nature face 

 to face. His books, therefore, embody the 

 mature judgment of a man who through 

 long years of work in the laboratory of the 

 geologist had become a trained observer, 

 and acquired a personal knowledge of the 

 facts of which he was to treat. A nat- 

 urally keen insight into physical problems 

 had been strengthened by his early train- 

 ing, and he v/as able to study the earth as 



