Richardson, O. W.

The excitation of soft x-rays

[London]: Reprinted from the Proceedings of the Royal Society, 1928. 8vo, pp. [2], 61-83, [1]; original green printed wrappers; some staining on front cover; a few readership marks. Reprinted from the Proceedings of the Royal Society, A, Vol. 119, 1928. Item #56800

Price: $25.00