March 6, 1946
Dear Branson:
I have put in some time perusing your reprint, The Flow of a Viscous Fluid in an Elastic Tube: A Model of the Femoral Artery.
I need a dictionary, a calculus book, a mathematics for elementary students, and a physics for beginners to get any idea of what you're talking about, but it looks good: I'm glad that we don't have to use this in order to stop hemorrhage from an injured femoral artery.
Sincerely yours,