period covered by this study. Its discussions of the traffic prob-
lems of American railroads are the best available in secondary
sources. Many of its editorial analyses cast interesting lights on
significant phases of American railroad development. Its obitu-
ary notices on American railroad leaders are also valuable.

12. Ry. Review. The Railway Review was published in Chi-
cago. Its discussions of the affairs of western railroads were fre-
quently illuminating. The journal's value in reflecting western
railroad affairs increased with the passage of time. The coverage
was more complete in the eighties than in the seventies.

13. Ry. World. The Railway World began its publication in
1875. It was a successor to the United States Railroad & Mining
Register. The Railway World in its earlier years supported the
views of the Pennsylvania Railroad and of its President, T. A.
Scott, especially in the Huntington-Scott struggle over the South-
ern 32nd Parallel Transcontinental Route in the seventies. Dur-
ing the eighties little is found in the Railway World that is not
covered in the Railroad Gazette.

14. Union Pacific Historical Museum. Papers of the Union
Pacific are deposited in the Omaha offices of that road. They
have not, however, been made available for public examination.
Mr. Paul Rigdon of that road sent the author a number of these
letters bearing on Gould. The author expresses his appreciation
of this courtesy. These letters are footnoted as "Union Pacific
Historical Museum."

15. The United States Railroad & Mining Register was ably
edited. Its contributions and opinions were valuable in the late
sixties and the early seventies. The paper suspended publication
in 1875.

Other sources used are newspapers in New York, Philadelphia,
Chicago, and Boston, and a number of periodicals. These are
footnoted. The most valuable of these periodicals is Bradstreet's,
which began publication in 1879. A number of Congressional
documents were useful, and these, too, are all footnoted.

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