“…T HE RELATIVE distribution of phosphorus in the electrophoretic components of the blood serum from laying hens, cockerels, and diethylstilbestrol injected cockerels has been observed (Brandt et al, 1950;Moore, 1948;Clegg et al, 1951). By means of a method developed, to measure P 32 content of the various electrophoretic fronts in the Tiselius type electrophoresis apparatus (Hein and Clegg, 1952), certain of these components, particularly in the case of the laying hen and diethylstilbestrol treated cockerels, were observed to contain a large amount of the total P 32 activity (Clegg and Hein, 1953).…”