690 GEOLOGY OF OHIO. 
4, Limestone gravel soil. 
“6. White clay—unproductive. 
6. Subsoil of No. 5. 
7. Yellow clay, or common upland soil. 
** 8. Subsoil to No. 7. 
“« 9. Yellow clay, or common upland soil. 
“10. Upland prairie soil. 
—— 
i 1 2Q 3 4 5 6. 7 8 9 10 
Soluble in hydrochloric acid .......- 60.84 | 48.91 | 15.27 | 13.93] 5.20| 235] 6.41] 8.51] 4.89 | 13.26 
Organic matter and water .......... 3.03 | 8.04) 3.78 | 4.05] 0.80] O22) 3.16) 1.54) 1.13 i; 5.18 
STIPE CHAGTCN Ee ean ty ne ee aL 0.23 0.06 0.06} 0.06 0.06 0.05 0.31 0.10 0.08 0.08 
TTOTA SES OUELOX10 Came ete eee 1.86 | 2:43 | 4.41 | -3.25 | 2:80) 1.16) 1.91 | 3:66} 2.09 | 2.50 
GNdhamaariranp ys hey ees kn Ya ae Le PUTA 0.90 1.05 1.70 1.65 0.50 0.10 0.30 1.52 0.02 1.85 
Manganese ji iia Mu iene sO es esky trace | 0.07 | trace | 0.03 | 0.09 | 9.05 | 0.15] 0.04} 0.02 | trace 
imimevphosphateseeeeee ee ee eee 0.24 0.13 0.37 0.28 0.07 0.10 0.14 0.19 0.10 0.27 
AGING MCALDOM ALORS EA ee eee ete 50.87 | 35.85 4.10 2.77 0.21 0.23 0.41 0.37 0.35 2.48 
Magnesia, CALDOM ALC Ia ee ee 2.39 0.58 0.46 1.12} 0.29} O31 0.30 0.771 0.29 | 0.33 
Soda and ‘potash Repeal Aa Veo ESL MOE RD 0.53 0.10 0.06 0.10 0.10 0.10 0.04 0.09 0.10 0.10 
Sul phunicla cides assesses eee ---| 0.12 | 0.10) 0.10} 0.05 | 0.03 | 0.06 | 0.12] 0.28 | trace | 0.06 
Solublomiatter found aaa 60.67 | 48.91 | 15.04 | 13.26 | 495 | 228| 6841 850| 4.41} 12.80 
Insoluble in hydrochloric ACI Cue 39.16 | 51.09 | 84.73 | 86.77 | 94.80 | 97.65 | 93.59 | 91.49 | 95.11 } 86.80 
Onganichematicreeeees eee e eee 6.03 | 20.80 6.61 5.00 2.05 2.46 1.64 4.06 2.62 8.02 
Sill CiGraci diene ons kana Mee ama ae 26.05°| 20,79 | 62.41 | 68.91 | 85.52 | 83.95 |} 79.26 | 70.60 | 80.12 | 64.12 
Alumina and trace of iron.......--- 4,23 COLON Teoiey | PAIR Whe ODT A) UPC 8.91 ; 10.76 
Mian grain @S 6 eer apie isl iea lvatn dase trace |trace |.. ....|trace | 0.32 | 0.15 | trace | trace | trace | trace 
TTT Gs Rea dy a Lee ey ne 0.92 0.77 | 0.71 0.73 0.79 0.91 0.82 0.80 0.91 0.59 
Maegmnesia....- Sara Die RC MON Rica MERU NTE 0.34 0.15 0.87 0.41 (63 0.40 0.41 0.36 0.20 0.45 
SOC, HAG! TNOUREIN —soocdosoooesonnoee 1.40 2.27 1.20 3.58 2.62 2.62 2.19 1.66 2.84 3.00 
IENOSphoricracidiee sn ase eee eee 0.34 | 0.19 | 0.40) 0.10) 0.18) 0.24 | 0.237) 0.14) 0:02))) 0.13 
Insoluble matter found......... 39.31 | 51.19 | 94.33 | 86.11 | 94.54 | 97.90 | 93.72 | 90.52 | 95.61 | 87.07 
Soluble matter found -.......... 60.67 | 48.91 | 15.04 | 13.26 4,95 2.28 6.84 8.50 4,41 | 12.80 
Total matter found......... 99.68 100.10 | 99.37 | 99.37 | 99.47 |100.18 |100.56 | 99.02 |100.02 | 99.87 
V. WATER-SUPPLY. 
Brief mention must be made, in conclusion, of the water-supply of the 
county. The subject is one of great scientific and practical interest. It 
falls strictly within the purview of Geology, while at the same time it 
has most important relations to sanitary science. 
Greene county has certainly a fair water-supply. It is not quite equal 
in this respect to Madison county, which must be set down as having, on 
the whole, the best watered area of the Third Geological District, but, 
on the other hand, its natural supply is infinitely better than that of 
Clermont, Brown, and Hamilton counties. A larger proportion of the 
water used by man and beast is derived from springs and the streams 
flowing from them than is usual in this section of the State. The Drift 
beds give rise to a part of these natural fountains, but all of these will be 
left out of present account, and attention will be asked only to the springs 
that issue from the bedded rocks. 
