CLAYS AND MARLS. 



SS"? 



Hudson, and exerts nn important influence upon the agriculture of these vallies. It is an 

 excellent hase for agricultural work, and makes a desirable foundation for tillage. 



A reddish brick clay appears on Cayuga lake, and is probably the same clay which 

 exists in Christian-hollow. 



The Adirondack clay is local, and is formed by the decomposition of the hypersthene 

 rock. 



COMPOSITION OF THE CI.AYS OF NEW- YORK. 



PLACES AND KINDS OF CLAY. 



5§s 



Tertiary or Albany clay 



Niagara clay 



Cayuga clay 



Adirondack clay 



Brick clay near Caldwell 



Reddish clay of Christian hollow, t 



S-OO'lrace. 



14-62 



16-4S 



0-04 



8-92 



8-29 



2-42 

 0-16 

 0-60 

 0-39 

 1-.36 



trace. 



trace. 



trace. 



trace. 



0-44 

 trace. 



0-11 



5-2S 

 3-24 

 8-44 

 6 -.52 

 6-68 

 2-60 16-36 



' A preceiiiog analysts gave i-62. t Common io the Wbeai dtstrict. 



COMPOSITION OF THE NEW- YORK MARLS. 



Saratoga co\inty 



Fairmount : near Mr. Geddes', 



Salem : Mr. Crary's farm 



Christian -hollow 



Cayuga bridge* 



S.')-62 

 21-24 

 ST -22 

 75-45 

 22-20 



1-24 



1-24 

 0-62 



s-ss 



3-92 



0-51 

 0-52 

 3-00 



3-40 



2-42 



0-.56 



41-75 



2-32 



7 "-25 

 22*24 



4-SS 



3-80 



trace 

 0-62 

 19-30 



'Formed by decomposing plaster shales. 



