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"The Harmonic Analysis of Irregural Motion" [as published in] JOURNAL Of MATHEMATICS And PHYSICS. Vol. V, No. 3. March, 1926.
Cambridge: Massachusetts Institute of Technology, 1926. 1st printing. [1], 130 - 189, [3 (blank)] pp. 9-1/4" x 6". Grey paper wrappers with black title lettering printed to front wrapper. Now housed in an archival mylar sleeve. More