Appendix: World longitude operation of 1926. Results of observations at San Diego and Washington, by F.B. Littell, J.C. Hammond, C.B. Watts, and P. Sollenberger, p. 527.
List of plates, p. VII.
Table of contents, p. V.
Electronic reproduction. Chester, Vt.: NewsBank, inc., 2007. Available via the World Wide Web. Access restricted to Readex U.S. Congressional Serial Set subscribers.