Lesley.] -i^-' [Jan. 2 and Feb. 6, 



village occupying tlie upper slopes on both sides of the Creek, and the 

 farms sti-etching south and east to the foot of the mountain. It is a stack 

 43 feet high, 9i feet across the boshes, 48 inch tunnel, slope of boshes 68'^', 

 hearth 5^ feet high, 48 inches wide at top and 30 inches at the bottom, with 

 two cold air tuyeres, fed from blowing- tubs 6.4 long, driven by a 16 inch 

 cylinder engine, 4^ feet stroke. A Cameron blast 32 inch steam cylinder 

 and 6X5 feet blowing-tub is held in reserve. Steam is generated in three 

 30 feet cylinders, 43 inches in diameter, fed with Creek water by a No. 4 

 Cameron steam pump, with a No. 8 Earl steam pump in reserve. Another 

 steam-engine drives three lathes. 



The uniform yield of the furnace has been 100 tons per week. It is 

 now changed to hotblast, by the recent erection of a Pleyer oven lTXo'X.2^ 

 feet, with six tiers of pipes, in a building 17 X 12. 



THE FOSSIL ORE BELT. 



On the north-west flank of the Bald Eagle Mountain the Medina Red 

 Sand-stone and the Clinton Red Shales and Marls, all standing vertical 

 at the out-crop, (see figs. 1, 2, 3, 4, ) bring up to the surface the Upper 

 Soft and Lower Plird Fossil Ore Beds, long and extensively worked at 

 Frankstown in Blair County, 15 miles south of Tyrone City. 



One or other of these out-crops may be noticed at three points marked 

 on the west flank of the Bald Eagle Mountain in the Large Topographi- 

 cal Map accompanying this report. 



On a separate and smaller Map of the same Mountain, continued to the 

 south of Tyrone under the local name of Brush Mountain, both out-crops 

 may be seen in the same relative positions. 



On the sheet containing this smaller Map are three geological cross 

 sections, two of which show the vertical attitude of the fossil ore-beds at 

 Tyrone City Gap, and the third their more inclined attitude at Dysarts 

 Mine, at the south limit of Lyon, Shorb & Co. 's lands, four miles south 

 of Tyrone City Gap. By the time the beds reach Frankstown they get 

 to be nearly horisontal. Beyond HoUidaysburg they become vertical 

 again, owing to the Morrison's Cove fault (which exactly simulates the 

 Bellefonte fault), and a^ain they die away to the horisontalon Dunnings 

 Creek. At Bedford they are again vertical ; and so they alternately 

 stand and fall through Virginia and Tennessee. 



In the other direction from Tyrone City, north-eagtward, the vertical 

 attitude of the fossil ore-beds is pretty well maintained for forty miles ; 

 past Bellefonte, Lock Haven and Wilkesbarre, to Muncy, where they fold 

 almost horisontally around the east end of the Bald Eagle (Muncy) 

 Mountain. 



Wherever the out-crops of the fossil ore-beds of No. V. have been ex- 

 amined, alonjf their out-crops to the north-east of the Tyrone neighbor- 

 hood, they have been found too thin to work ; at least, for cold blast 



