THE NATIONAL PARES 



535 



the tourist but serve an extremely useful educational purpose by dis- 

 seminating the results of scientific work. It is therefore planned to 

 issue a number of short publications describing the phenomena in the 

 various parks and explaining the causes and forces that have produced 

 them. It is not contemplated that the department will embark on orig- 

 inal investigations, as it is believed that more material can be obtained 

 than can be printed with the funds available, but it is hoped to revise 

 some of the papers already published and issue them in pamphlet form. 

 The department has just issued the following publications : " Geo- 



Photograph by Asahel Curtis. 

 Mount Rainier, from Kadtz Fork. Mount Rainier National Park. 



logic History of the Yellowstone Park," by Arnold Hague ; an account 

 of the geysers of the Yellowstone Park, including a comparison with 

 the geysers in New Zealand and Iceland, by Walter Harvey Weed, and 

 the geologic history of Crater Lake, by Joseph S. Diller. These pub- 

 lications are illustrated with well-selected half-tones and carefully 

 prepared black and white maps based on the accurate topographic maps 

 issued by the Geological Survey. 



The first need of the intelligent traveler is a map of the area he is 

 about to traverse. Fortunately excellent maps of almost all the larger 

 parks are for sale by the United States Geological Survey at nominal 

 prices. Maps have been published of Yellowstone, Yosemite and 

 Glacier national parks on a scale of 2 miles to the inch; of the Crater 



