"We... acknowledge our especial indebtedness to Professor Alexander Ziwet for reading all the proof, [and] for the digest of a Russian work, to Professor Clarence L. Meader for Sanskrit transliterations, and to Mr. for Arabic transliterations... and... to other scholars in Oriental learning..."
January 1, 1970
https://en.wikiquote.org/wiki/The_Hindu-Arabic_Numerals