HARFORD. G 5 . 129 



3. Calcareous breccia, 6' 



4. Shale, bluish green, 1' 



5. Shale red to level of Oakley Station, (942' A. T.,) .... 2' 



No. 1 is much current-bedded, has very thin layers, and 

 makes a long line of cliffs around the hills ; it belongs in 

 the New Mllford series, and may possibly represent the 

 New Milford Upper sandstone ; which would give a dip of 

 only 50' per mile between Oakley and Montrose Depot. 



No. 3 is one of the impure limestones of the Catskill ; it 

 is seen along the railroad for several rods and is almost as 

 hard as granite ; contains probably 25 per cent, of carbon- 

 ate of lime, and great quantities of pieces of the underlying 

 bluish-green shale, together with what appears to be frag- 

 ments olfish bones, so broken and triturated however by the 

 rapid current which deposited the stratum, as to be almost 

 indistinguishable from the other material. The lime in the 

 rock has the appearance of having been partly derived from 

 the trituration, or breaking up of a pre-existing limestone. 



A short distance down the track from where this section 

 was taken, we see a massive sandstone immediately above 

 the impure limestone, and this latter rock dips below R. R. 

 level just before we come to Oakley Station. 



About two miles north from Harford village, on the sum- 

 mit of the hill near Mrs. Leech's, a series of very massive 

 sandstones is seen beginning at 1445' A. T. and extending up 

 the hill in several beds (each separated by 20' to 30' of shales) 

 for 200 feet. On one of these beds at 1455' A. T. are seen 

 many glacial striai going S. 25° W. magnetic ; the upper 

 surface of the rock is planed off quite smooth and the par- 

 allel groves vary in depth from J to ^ inch, while the breadth 

 varies from ^ to 4 inches. 



Near School House No. 3, 1£ miles east from Montrose 

 Depot, a quite massive sandstone is seen capping the hills 

 at 1600' above tide, and it may possibly represent one of the 

 Montrose group. 



Barometric elevations in Harford. 



A. T. 



Cross roads near T. Carpenter's, 1360' 



Forks near A. M. Steam's, 1390' 



