CHERRY RIDGE. GP. 197 



the expense of the other. The sandstone portion is grayish- 

 white, and at this locality contains a few pebbles. In the 

 crevices of this stratum we also find great numbers of quartz 

 crystals attached to the faces of the stone ; some are two 

 inches long by one quarter inch thick. Their presence here 

 where the strata are almost horizontal is somewhat remarka- 

 ble, since they must have originated by crystalization from 

 some solution at very little above the ordinary temperature. 



The Cherry Ridge limestone, which is so very persistent 

 over Wayne and Susquehanna counties, comes just at the 

 base of the sandstone and contains a few pebbles of quartz 

 in addition to thefis7i bones, pieces of shale and other for- 

 eign matter which it usually holds. A short distance south 

 from Mr. Collins' s, the limestone has been burned for agri- 

 cultural purposes by Mr. J. R. Schenk ; the rock is very 

 hard and breaks with great difficulty ; only about half of 

 that placed in the kiln slacks down on exposure, the rest 

 coming out in sandy porous nodules, while some portions 

 even melt down into a slag. 



Specimens of the rock richest in lime and that much poorer 

 looking were sent to McCreath who returned the following 

 analvses : 



i. 



ii. 



Carbonate of lime, .... 



' k " manganese, 

 Oxide of iron aud alumina, 

 Phosphorus. .... 

 Silicious matter, 



64.392 



1.816 



4.145 



.050 



19.785 



3.518 



8.903 



.095 



28.800 i 65.470 



These analyses show that the best of the rocks may be 

 burned successfully for agricultural purposes in a country 

 like Wayne county where it is the only obtainable lime- 

 rock and where the land is famishing for lime. (See p. 65, 

 above. 



The poorer qualities of the stone like No. II specimen 

 can not be successfully burned however as they will either 

 not u slack" or else fuse into a glassy slag and hence some 

 discrimination is necessary in selecting the stone for burn- 

 ing. 



