Seeking a quote about 1930s algebraic topology

It seems to me I recall someone, maybe Eilenberg, saying they gave a talk at Harvard in the 1930s on algebraic topology, where someone in the audience said the subject had reached a level of complexity that it would not be able to sustain. Can anyone here confirm that? Or can someone correct me by giving a different story that I might have confused in my memory? best, Colin [For admin and other information see: http://www.mta.ca/~cat-dist/ ]