“…percentage retention at the one-week and three-week post-exposure periods, but the figures do not differ significantly from those in Table I. al., 1958;Burnap et al, 1958;Carson et al, 1959;Griffiths and Ozguc, 1964;Joseph, 1964;Keeri-SzAt6, 1965), Retention (± S.D.) after in dogs (Brindle et al, 1957), in sheep (Hull and Reilly, 1968), res and in calves (Middleton et al, 1966 (Combes and Stakelum, 1962) to support the view that the 5 ±3 6±3 removal of B.S.P.…”