the thickest layer so far developed being about 14″. One bed of good limestone, about 2′ thick makes the bottom rock of the opening.
The King quarry is located just west of the road leading to White Springs, opened in the massive limestone series of No. VI, and furnishing an excellent quality of lime. It is a small opening however, and has not as yet developed any thickness of rock,
R. & D. Longs’ quarry is situated a couple of hundred yards west on the east side of the next road crossing the ridge, where the limestone developed and burned is of first-class quality. The general trade is supplied from this opening, field and plaster lime selling at 7½ cents per bushel for “run of quarry,” and 10 cents for picked lime.
The rock section exposed is about 40′ thick, the lower 25′ consisting of good blue beds, less silicious, and are said to make the best plaster lime, but no better for fertilizing purposes than the upper beds.
The quarry is about 70′ long and is equipped with two kilns, one of which is kept going constantly. Work has been carried on for about 2 years, averaging about 9 or 10 thousand bushels per year. The dip is S. E. about 10° and the Oriskany sandstone and chert caps the ridge above the opening where it has been somewhat quarried for road purposes; but it only makes a small knob at this point, being eroded to the east and west. It is about 15′ thick.
From Long’s quarry to White Springs the synclinal of the limestone ridge is crossed further west, where it again holds a strip of the Oriskany sandstone measures.
Barber’s quarry, just north of White Springs, has developed the bottom members of No. VI on the south flank of the ridge, largely exposing a gray and white stone, not particularly good. There should be better layers opened higher in the ridge. The dip is about 15° N. W., increasing to about 35° southwards in the upper Salina lime shale valley, which spreads out between the limestone ridge and the Bloomsburg red shale, east of White Springs.
Along the eastern end of the Mifflinburg ridge the No. VII Oriskany rocks again cover the crest with a thin
