Warszawa [ Warsaw ]: Z Subwencji Funduszu Kultury Narodowej 1935. First Edition. , 331,  pages. Original blue printed wrappers. Wrappers are separated from the spine and need to be reattached. Volume has been well read, and is loose. Text is in English. Good. Wraps. 
"Antoni Zygmund (December 25, 1900 – May 30, 1992) was a Polish mathematician. He is considered one of the greatest analysts of the 20th century. His main area of interest was harmonic analysis." (Wikipedia) 320 pages plus bibliography and publisher advertisements.
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