THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL 



vol.. XVI. JULY, 1895. No. 7. 



Notice of Microscopic Fossils Occurring in Tertary Marl 



Strata. 



By K. M. CUNNINGHAM. 

 MOBILE, ALA. 



[With Frontispiece.] 



Having recently had occasion to make a micro-analy- 

 sis of some samples of a calcareous marl from a deposit 

 occurring on the Chickasawhay River near Red Bluff 

 Station, on the line of the Mobile and Ohio Railroad, in 

 Clarke County, Mississippi, I was agreeably surprised, 

 during the examination, by the character and contents 

 of the material. It also proved to be of more than or- 

 dinary interest, and the results of its study I have 

 deemed as of suflBcient importance to be placed upon 

 record for the benefit of students of the microzoa. The 

 marl off'ered itself in two conditions : one as an earth, 

 friable and minutely granular in structure, and ochre- 

 ous in color, composed almost entirely of microscopic 

 foraminiferal shells ; the number of species included 

 therein probably reaching fifty or more. These are 

 essentially the same species as are of record as occur- 

 ring in the cretaceous marls of New Jersey, and which 

 have lately been listed and published in the Journal of 

 the New York Microscopical Society by Anthony Wood- 

 ward, Ph. D. The other sample was a very tough and 

 blue-green clay. 



Apart from the forarainifera noted in the other mater- 



