258 Berry — New Cretaceous Bauhinia from Alabama. 



suggests Bauhinia cretacea Newberry* of the Raritan forma- 

 tion in New Jersey, and it may well be a descendant of that 

 species, which as time passed widened out and became sub- 

 lobate. It differs from any existing species known to the 

 writer. in its great width and sublobate character, although 

 several recent smaller-leaved species approach it in the latter 

 respect, and it seems probable that if representative collections 

 of the foliage of the recent forms showing the limits of specific 

 variation were available for comparison, it would be found that 

 a tendency toward the formation of sublobes was far from 

 exceptional. Two recent species were noted as showing this 

 marginal character. These are Bauhinia hookeri F. v. M. of 

 Australia and Bauhinia tomentosa Linne of the West Indies. 

 The display of species of this modern tropical genus in the 

 Upper Cretaceous of the Atlantic coastal plain is certainly 

 remarkable, for it embraces very small and very large forms 

 and shows a variety almost as great as that furnished by the 

 existing species. Quite recently still another and very dis- 

 tinct species of Bauhinia was collected by the writer from 

 typical Ripley strata in Alabama and this will be described 

 upon a subsequent occasion. 



Johns Hopkins University, 

 Baltimore, Md. 



Art. XXI. — Anhydrite and Associated Minerals from the 

 Salt Mines of Central Kansas / by Austin F. Rogers. f 



In this country anhydrite, the anhydrous calcium sulphate, 

 seems to be a rather rare mineral. A year or so ago the 

 writer found it in some abundance at several of the salt mines 

 in central Kansas. So these must go on record as occurrences 

 similar to the well-known localities in Germany and Austria 

 where it is a common mineral. In characters and paragenesis 

 the Kansas anhydrite resembles the foreign anhydrite. 



The anhydrite was collected from the dump-piles of the salt 

 mines at Kanopolis, Ellsworth Co., and at Lyons, Rice Co. 

 At Kanopolis rock-salt is mined in one shaft at a depth of 795 

 feet and in another shaft at a depth of 805 feet. The layer of 

 salt is about 11 feet thick. A log of the Lyons shaft and of a 

 deep well at Kanopolis are on record;}; but the anhydrite evi- 



* Newberry, Fl. Ambov Clays, p. 91, pi. xliii, figs. 1-4 ; pi. xliv, figs. 1-3, 

 1896. 



f Published by permission of the State Geologist of Kansas. 

 ^Annual Bulletin on Mineral Eesources of Kansas for 1898, pp. 93-4. 



