RECORD OF DEEP WELL DRILLING FOR 1904. 
By M. L. Fuller, E. F. Lines, and A. C. Veatch 
INTRODUCTION. 
In this report, which is the first of a proposed series of annual pub- 
lications, are presented the results of the first six months' work by 
the United States Geological Survey in the systematic collection of 
well records and samples. Much time having been occupied in organ- 
ization and preliminary correspondence, the results of only about three 
months' actual work are included. The report is issued for the pur- 
pose of giving to present or prospective well owners and drillers the 
results of drilling as reported to the Survey, with the object of fur- 
nishing them as good a basis as possible for future drilling in the 
regions discussed, and to afford geologists and others a more complete 
knowledge of the rock succession and structure. 
It is intended that the reports of the series shall present records of 
contemporaneous drilling rather than the results of past work, a spe- 
cial attempt being made to secure records accompanied by samples. 
The logs of completed wells, however, will be incorporated when 
practicable; but as records of such wells are seldom preserved for any 
length of time, their number will probably decrease in proportion to 
new wells as the work continues. 
All well records received during the year 1901 that were accom- 
panied by complete sets of samples are presented in this report, as 
are also a considerable number furnished by drillers, contractors, well 
owners, etc., representing other completed wells. The report does 
not, however, include all records furnished the Survey, a great num- 
ber being furnished by oil companies and others interested in the 
development of oil or mineral lands. Many of these are confidential 
and can not be published, while others will be compiled and embodied 
in reports on special regions, which will be published later. 
Grateful acknowledgment is made to the following contractors and 
drillers who, by furnishing records or samples, have assisted the Sur- 
vey in its endeavor to bring about a better knowledge of the strata 
penetrated in drilling. The asterisk (*) indicates that records of wells 
are given in whole or in part in the present report; in the other cases 
the records are either confidential or are reserved for special reports 
to be published later. 
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