196 EARTH FEATURES AND THEIR MEANING 



WILLIAM H. HOBBS. The Newark System of the Pomperaug Valley. 

 Connecticut, 21st Ann. Rept. U. S. Geol. Surv., Pt. iii, 1901, pp. 91-93. 



Artesian wells : 



T. C. CHAMBERLIN. Requisite and Qualifying Conditions of Artesian 

 Wells, 5th Ann. Rept. U. S. Geol. Surv., 1885, pp. 131-173. 



Hot springs and geysers : 

 A. C. PEALE. Yellowstone Park, Thermal Springs, 12th Ann. Rept. 



Geol. and Geogr. Surv. Ter. (Hayden), Pt. ii, Sec. ii, pp. 63-454 



(many plates and maps). 



W. H. WEED. Geysers, Rept. Smithson. Inst., 1891, pp. 163-178. 

 ARNOLD HAGUE and W. H. WEED (on hot springs and geysers of Yellow- 

 stone National Park), C. R. Cong. Geol. Intern., Washington, 1891, 



pp. 346-363. 

 W. H. WEED. Formation of Travertine and Siliceous Sinter by the 



Vegetation of Hot Springs, 9th Ann. Rept. U. S. Geol. Surv., 1889, 



pp. 613-676, pis. 78-87. 



M. NEUMAYR. Erdgeschichte, vol. 1, pp. 500-510. 

 ARNOLD HAGUE. Soaping Geysers, Trans. Am. Inst. Min. Eng., vol. 17,. 



1889, pp. 546-553. 

 JOHN TYNDALL. Heat as a Mode of Motion, New York, 1873, pp. 115 



121 (artificial geyser). 



