744 GEOLOGY OF OHIO. 
sections at Freeman Bros., Elliotsville, Croxon’s Run and Sloan Station, 
indicate that the limestone coal of Elliotsville is No. 5, here widely 
separated from the underlying coals, and a local coal seam coming in to 
occupy the middle of the interval. Possibly further observations will 
prove this conclusion wrong, but it is the only logical inference from the 
facts now before us. If we were to suppose the limestone coal at Elliots- 
ville to be No 6, we should then have another difficulty in the interval 
of 100 feet, which separates that from Coal No. 7, which is nearly twice 
the average distance in this region. Another fact that argues in favor 
of the coal in question being No. 5, is that 30 feet above it is a hard, non- 
plastic fire-clay, which is found in most of the sections along the river. 
At Smith’s Ferry it is below Coal No. 6, and at Sloan’s Station it lies 
above the ‘ Limestone Coal” which is here only 62 feet from No. 4, and 
midway between that and Coal No. 7. The intervals are there all di- 
minished as will be seen when the notes on that locality are reached. 
At Elliotsville the local geology has been quite carefully studied by Dr. 
Wilmot Garlick, and the members of the Geological Corps have at differ- 
ent times received much assistance and many courtesies from him, and 
his father, Dr. T. Garlick. 
The following section was taken at Hlliotsville: 
1. Shaly sandstones reported to contain near top a coal 3 to 4 
feet inethicknesstiss acceso ee cee cee scecin asec une ts 
2. Coal, thin. 
3. Fire-clay and shale, used for pottery.....--...-.......-.. 3 feet. 
“CHES WMI cagccogsoome sad soo dcop amsooR co oasD So cESoSSsos §=©—-@ JENGINEE, | 
JOTREHOIEN BYNGL INE) Gb 66 ca5o506066 se coda ce sobo50 sHOS6e600 Ot) IKEELI 
6. Coal No.7, hard and clean............--....-...-...----- 3 feet 8 inches. 
7. Shale sandstone and covered.....-..-.-.-...-.-.-.--..-- 66 feet. 
8. Hard clay, changing gradually into shale above and be- 
HOR fy TRE DORE Lo 5 Sone cn ohe coco bo Gade os cosSCCoScoDoOscS |= SIGE, 
9. Shales and shaly sandstones.................-.--..----.- 26 feet. 
10. Coat No. 5, soft and smutty.......---.-..-...--.--------. 3 feet 2 inches. 
Nil,  ARROSIEN? G6 cco cosas boa co dobe cou sso oo Co So SS COOH GOCoDoDS «6 HTM nes, 
12a imestone@reae sees eeiae eee oe eee eee aeeeaee emOPLeoE 
18. Sandstone and shales, with a line of springs near the 
MIA GlOxe occ voc os eas ciarce sews siete eee eee OOReO be 
MY ORG Wy lod bo cb do ce co sscas ce doeecog scone cose oonosc cosas) Ie tee, 
15. Fire-clay and gray shales, with nodules of iron........... 25 feet. 
16S, Coat) Nov Seco Bhs eens cies cales ners see oie toe re ore SB RUOLOELOO Ge 
17. Fire-clay, used in pottery .......--.....-..--.....-...... 8 feet. 
18. Hard, blue, argillaceous sandstone, with mica, to river. 
The exposures of the strata between the coals is not very good, but all 
the coal seams enumerated above have been opened by Dr. Garlick. 
The clay and argillaceous shales associated with the two thin coals (2 
