248 



NEW YORK STATE MUSEUM 



Feet Inche s 



f 10 Compact, irregularly bedded lime sandrock 

 forming a single bed and very fossiliferous. 

 Spirifer vanuxemi predominates. 

 With f 11 and f 12 this forms a solid cliff. . . 2 



f 9-f 8 Lime sandrock showing composition of shell 

 fragments on the weathered edge and rather 

 thin bedded in appearance when weathered. 6 3 



f 7-f 6 Heavy bedded lime sandrock, fossiliferous and 



chiefly made up of shell fragments 1 3 



f 5 Shaly lime mudrock with thin beds of Tenta- 

 culite limestone at the middle. Also con- 

 tains Leperditia 1 3 



f 4-f 3 Dark heavy bedded lime mudrock. The 

 smooth weathered cross-section of the rock 

 has a curious granular structure like grains 

 of sand, which weather slightly in relief. 

 They give the rock an oolitic appearance, 

 which however is less apparent on fresh 

 fracture. This feature, though shown in f 1 

 and 2, is eminently characteristic of this 

 bed. In it also occur Leperditia 

 a 1 1 a and Spirifer vanuxemi 

 though less commonly. Tentaculites 



gyracanthus also occurs 4 



f 2-f 1 Dark heavy bedded lime mudrocks with some 

 of the layers banded. Contains Leper- 

 ditia a 1 t a and Spirifer van- 

 uxemi in abundance 3 



Total Manlius exposed 33 3 



Rondout 



e 12 Compact dark lime mudrock. exposed in the 

 road, and apparently the bed forming the 



base of the quarry 1 



ell-el Concealed mostly 22 



Cobleskill 



d Exposed in the road 1 



