LOG OF WELL OF PENNSYLVANIA SALT COMPANY 
DETROIT, MICH. 
WILLIAM H. FRY! 
U.S. Bureau of Soils, Washington, D.C. 
This Bureau has recently prepared logs of various Michigan 
salt wells;? but unfortunately the samples from which the following 
log was prepared did not come in until too late to be incorporated 
with the other work. However, it is thought advisable to make 
the results complete, and consequently the log is given herewith: © 
Depth in Feet 
De SD So ay | PS a ae a SAA Calcareous clay 
eee OOPENN OE Mer totic oS als onc) SENS % Sakae sess Limestone 
ASEH BLS): 4 ER a ee Calcareous sand 
DSC DSS) ae WO ee a ee Calcareous sand 
ROG OME Ta ot eta oatcs goes ashe es aoe Limestone 
BRC SCOPING 1245 ew iiss esis os dine cmos Limestone 
Om OEE LSS oF oleic we sle Care She Limestone and gypsum 
STI CACO S 2 Oe Ce oe eee Limestone 
Oe OOM, Gog eicin sais eS ance 60S aps bee Shaly limestone 
HOSE GOON at ee Limestone 
FCS QS 56 Ab Se eae eee eee Salt 
SIR C4) > cy Ge ROAR eae eae Limestone 
AO ODOM enn Rill eae kb aia s ee ae a Limestone 
OR COS OPI tea e saya & ors Sed is Rebuahin « ele ene Salt 
ROR EOL OME EN Ae a tocine sts Sins ca eta dene ses Limestone 
BOR SASIS SEE ao Se Ce ee ae Salt and limestone 
TD STEIN GS phot ER ge aes ee Salt 
1 OSSTITIGTIS ae aan a Dolomitic and salty limestone 
TE SSRATOL 5 oho Coen Cree Salt 
PATO ASE & 0 SN Gee oe ee Salty limestone 
Scientist in Soil Laboratory Investigations, Bureau of Soils, U.S. Dept. Agric. 
2See Journal of Geology, XXI, 320-22 (1913); and Bulletin 94, Bureau of Soils, 
U.S. Dept. of Agriculture. 
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