THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL. 



Vol.. XVIII. JUNE, 1897. No. 6 



On a New Fossil Marine Diatomaceous Deposit in Alabama. 



By K. M. CUNNINGHAM, 



MOBILE, ALA. 



In the issue of this Journal for August, 1896, there 

 appeared a paper giving an account of the results secur- 

 ed by m3'self from an examination of a rather wide area 

 of strata of Tertiary age undertaken during the month 

 of June 1896. It contained much of interest in relation 

 to the various kinds of microscopic fossil organisms found 

 in the various deposits encountered, and in the same ar- 

 ticle I referred briefly to the locality around Suggsville. 

 At the time of preparing tliat paper, I had inadvertent- 

 ly overlooked a few specimens collected near Suggsville. 

 In December last while arranging and labeling speci- 

 mens of the minerals previously collected I found some 

 small samples of clay. It occurred to me that I had not 

 made a micro-analysis of the same, and with this in view 

 I made a trial test. I found that the material indicated 

 a very interesting deposit of fossil marine diatoms hith- 

 erto unknown, and offering much of interest to diatomists 

 and microgeologists in general. After ascertaining this 

 fact it became necessary to secure a relatively large 

 amount of the deposit for the purpose of introducing the 

 same to the notice of all wlio might desire to study the 

 contents and peculiarities of the new deposit. I there- 

 fore found it necessary to communicate with Dr. C. I. 

 Pahlberg, of Suggsville, indicating the situation of the 



