10 RECORD OF DEEP- WELL DRILLING FOR 1905. 
where possible, placed in the permanent storage cases, which have a 
capacity of 432 bottles to a drawer, or 5,000 to a case measuring, 
approximately, 40 by 32 by 24 inches. 
The notebooks, both those accompanying samples and those 
received independently, together with the records of completed wells 
obtained on the special well blanks, are filed by locality in the record 
files, all data pertaining to a given well being segregated and filed as 
a unit in a form convenient for consultation. 
Confidential records. — Owing to the expense involved in obtaining 
information through drilling, the operator may sometimes desire 
that certain information he has furnished to the Survey for scientific 
purposes be regarded as confidential. In all such cases his wishes 
will be rigidly followed. 
PUBLICATION OF RESULTS. 
The results of the work of collecting samples are described in 
reports issued annually, the general plan being to present each year 
a list of persons cooperating in furnishing samples or records, a 
summary of the wells reported, and detailed records of selected 
wells. The material is thus quickly made available to drillers, well 
owners, and geologists, who are enabled to make immediate use of 
the information, instead of being compelled to wait for complete 
reports, which, in general, could only be prepared after many years 
of work, the data in the meanwhile being unavailable, except to a 
few connected with the Survey at Washington. 
In addition to the reports descriptive of the systematic collection 
of samples and records, many other papers containing well records 
or' giving information in regard to oil, gas, artesian waters, etc., 
have been published by the Survey. A list of these and an index to 
the subjects treated has been prepared by the writer and published 
by the Survey as Water-Supply and Irrigation Paper No. 120. Of 
these papers those which are likely to be of the most interest to 
drillers and well owners are given below. Those of which the sup- 
plies have not been exhausted can be obtained from the Director on 
request. 
In the summary given below the following abbreviations are used 
for the various publications of the United States Geological Survey: 
A. R. 
Annual Reports. 
P.P. 
Professional Papers. 
B. 
Bulletins. 
M. R. 
Reports on Mineral Resources. 
G. F. 
Geologic Folios. 
M. 
Monographs. 
W. S. P. 
Water-Supply and Irrigation Papers. 
