Date on Master's Thesis/Doctoral Dissertation
As far as I have been able to determine from the scant literature at hand, no attempt has been made as yet to determine the percentage of non-protein nitrogen in milk by a procedure simple enough for use as a clinical method. This problem was suggested to me by Dr. Charles J. Robinson, with the request that I should base my method on some of the methods of determination of the non-protein nitrogen portion of other physiological fluids.
Vance, Sarah Huntoon, "Simple quantitative determination of the non-protein portion of milk, based on Greenwald's modification of the determination of the non-protein nitrogen in blood." (1918). Electronic Theses and Dissertations. Paper 1483.