854 FLORAL ZONES OF THE POTTS VILLE FORMATION. 



Tho ooinpo.sitioii of this flora conclusively proves its presence in the 

 Lower Lvkens division. The first three species mentioned arc to a 

 certain extent characteristic of the lower zone of that division and 

 mig-ht be expected in the vicinity of Lvkens coals Nos. 5 and 6. 

 Against so low a reference as coal No. 0, however, is opposed the pres- 

 ence of Lepldophylhuii q\iinnimontanuiii and Tfhjonocarjyum Helena^ 

 which, though not unknown in the horizon of No. 5, are in general more 

 characteristic of Lvkens coal No. -i, and which have not yet been 

 found so low as coal No. 6. It does not. therefore, appear permissible 

 to refer this flora to a lower level than that of Lykcns coal No. 5, on 

 the one hand, while, on the other hand, there is no evidence of weight 

 to lead us to regard it as high as Lykens No. 4. Accordingly, as 

 between the three horizons, this flora should perhaps tentatively be 

 referred to that of Lykens coal No. 5. Concerning the depth of the 

 shaft or the thickness of the coal touched at this point I find no printed 

 information. 



F. The only other locality on Short ^Mountain from which fossils 

 have been collected is a drift which, as shown on mine sheet xxvii of 

 the Anthracite Atlas, is located near the extremity of the mountain, in 

 the apex of the basin, and within 2,800 feet of the outcrop of red shale 

 bene ath the last of the conglomerates in the axis of the spoon of the 

 Pottsville formation. This seems to be one of the shaftings opened 

 in 1802. Naturally the shales are for the most part completeh' disin- 

 tegrated, and no encouragement is offered for the collection of fossils. 

 Some fragments of bone, however, still show traces of Calamarian stems 

 and cortices of various types, as well as rather abundant fruits of 

 Trujonocarpum. ampuUjpforine. 



THE LYKENS COALS IN STONY MOUNTAIN. 



Intelligent and thorough searcli for the Lylvcns coals seems to 

 have txHMi made at ))ut two points between Big Flats and the Kalniia 

 colliery, a distance of 16 miles. At the more western locality, on the 

 Dull and Hoff lands (Station 25, PI. CLXXX), but about 2 miles east of 

 the l)ig Flats, four or tive of the Lykens coals were located and shafted 

 in isss. The uppermost of these coals, which would appear from the 

 description' to ])e 400 or .500 feet below the probable approximate 

 horizon of the Buck Mountain l)ed, is said to be thin. A))out 200 feet 

 ])el()w this a thin, clean, bright coal was discovered. The next bed, 

 al)out 150 feet lower, contains 2 feet 7 inches of good coal, reported as 

 the best found. One hundred feet lower, 5 feet 5 inches of crushed 

 and dirty coal was opened, while a bed of impure coal and shale was 

 located 40 or 50 feet below th(> last. 



From the thickness and order of the intervals (see tal)li\ p. 8(54). we 

 may tentativeh' assume that the lowest bed represents Lykens coal 



'Suininiiry Fiiiiil Kuport, Vnl. Ill, I't. I, \>. JMJ. 



