A. F. Rogers — Anhydrite and Associated Minerals. 259 



dently wasnot identified, as no record of it appears. At Lyons 

 a 17-foot bed of salt occurs at the bottom of a shaft 1100 feet 

 deep. At Kingman, Kingman Co., Prof. J. T. Willard of 

 Manhattan also obtained anhydrite from the clump of a salt 

 mine. Bailey and Failyer in their list of Kansas minerals* 

 mention this occurrence of anhydrite, but it has evidently 



Fig. 1. 



a, anhydrite ; d, dolomite ; g, gypsum. 

 Fig. 2. Fig. 3. 



a, anhydrite. 

 g, gypsum. 



been overlooked, for no mention of it is made in any of the 

 reports of the University Geological Survey of Kansas. 



From an examination of the dump-piles it is evident that the 

 anhydrite occurs in thin lenticular layers inter bedded with 

 shales, and probably has an appreciable vertical distribution. 

 This is also true of the salt according to the shaft and well 

 records cited above. Some specimens from the dumps show 

 an intimate mixture of salt and anhydrite. The writer was 

 also informed that at Lyons anhydrite occurs below the main 



* Transactions Kansas Academy of Science, vol. xiii, p. 78, 1891-2. 



