604 NEW YOKK STATE MUSEUM , 



' Between Soutliold and Greenport are several deposits of a red 

 glacial clay whicli is used for brick. The clay contains angular 

 stone fragments and runs from 50 to 60 feet in thickness. About 

 one mile and a half east of Soutliold is a bed of mottled blue pottery 

 clay which has been used for a number of years in making flower 

 pots. The depth of this deposit is not known. 



At West Deerpark is a clay bank of unique appearance. In 

 July 1892 the section showed: 



Yellow gravel 6 feet 



Containing ) Elesh colored clay 6 " 



concretions f Red clay 1 foot 



Black clay with pyrite 4: feet 



Black sandy clay 4 " 



Red sandy clay 3 " , 



Total thickness 24 " 



Lenticular masses of gray sand are sometimes found in the 

 black clay. The black clay also contains frustules of 

 Melosira granulata, (Ehr.) Ealf s, and numbers of a 

 jointed yellowish brown hair, resembling those of a crustacean,' 

 The black clay burns to a white brick. About 4 miles west of this 

 locality near Farmingdale the section in Myers's clay pit is : 



Sand and gravel 6 feet 



Red sandy clay 6 " 



Yellow and red sand, wavy lamination 2 " 



Reddish yellow clay 6 " 



Reddish blae clay 20 " 



Micaceous sand, cross-bedded 



Total thickness 40 " 



