316 Scientific Intelligence. 



fully illustrated in this report. Although it does not attempt to be 

 an exhaustive paper on the statistics and engineering problems in- 

 cident to developing the water supplies, the geology is presented 

 in its relations to the occurrence of underground waters, their 

 sources and relations to the beds carrying them. The paper not 

 only presents an admirable exposition of geological structure, but 

 must prove of great value in guiding the inhabitants of the region 

 in supplying themselves with large supplies of fresh waters. 



h. s. w. 



4. South Dakota Geological Survey, Bulletin No. 2 ; by 

 James E. Todd, State Geologist; pp. 1-139, plates i-xv, figs. 

 1-2. 1898. — This second bulletin contains the 1st and 2d biennial 

 reports with accompanying papers for the years 1893 to 1896. 

 The papers of chief importance are accounts of the surveys of a 

 Section along Rapid Creek from city westward ; A reconnoisance 

 into northwestern South Dakota ; The geology along the Bur- 

 lington and Missouri Railway ; and Additional notes on the limits 

 of the main Artesian Basin, i. e., additional to those reported by 

 the U. S. Geological Survey in the 17th and 18th Annual Reports. 

 Numerous detailed sections of the rocks and reproduced pho- 

 tographs of the structure are given. h. s. w. 



5. Grater Lake, Oregon • by J. S. Diller. Extr. Smithsonian 

 Report for 1897, pp. 369-379, plates i-xvi. 1898. — This paper, 

 though a reprint of one which first appeared in the National Geo- 

 graphic Magazine (1897),* will bear repeating, holding as it does 

 beautiful illustrations of a region of which the author says : 



" Aside from its attractive scenic features, Crater Lake affords 

 one of the most interesting and instructive fields for the study of 

 volcanic geology to be found anywhere in the world. Considered 

 in all its aspects, it ranks with the Grand Canon of the Colorado, 

 the Yosemite Valley, and the Falls of Niagara, and it is interest- 

 ing to note that a bill has been introduced in Congress to make it 

 a national park for the pleasure and instruction of the people." 



h. s. w. 



6. International Geological Congress. — The eighth session of 

 the International Geological Congress will be held in Paris in 

 1900 between the 16th and the 28th of August. The Committee 

 of Organization has announced twenty-two excursions, three of 

 which are general; I, about the Paris Basin; II, Boulonnais 

 and Normandie; III, the volcanic regions of central France. The 

 other nineteen are special local excursions for the study of particu- 

 lar problems. A livret-guide will be prepared and ready for dis- 

 tribution the early part of 1900. M. Albert Gaudry, Paris, is the 

 President, and M. Charles Barrois, Lille, is General Secretary of 

 the Committee of Organization. h. s. w. 



7. International Geographical Congress. — The Geographical 

 Society of Berlin (Gesellschaft fur Erdkunde zu Berlin, F. Baron 

 von Richthofen, Prest., George Kollen, General Secy.) invites the 

 friends and promoters of geography in all countries, and especially 



*See also this Journal for March, 1897. 



