Published by American Mathematical Society, 1950
Seller: JF Ptak Science Books, Hendersonville, NC, U.S.A.
Soft cover. Condition: Fine. WEYL, Hermann (and also with Einar Hille). "Ramifications, Old and New, of the Eigenvalue Problem" in Bulletin of the American Mathematical Society, AMS, Menasha, Wisconsin, March 1950, vol 56 number 2, with the Weyl on pp 115-140 in the issue of pp 89-215. Original wrappers. Fine copy.