“…The solubility curves of Hb-F have been examined by Derrien and co-workers with the results already mentioned, by Giraud, Orsini, and Le Poullain (1956), Polosa et al (1957c, 1957d), and Pagliardi et al (1954, all using the salting-out procedure, and by Itano (1953a), White and Beaven (1954), , and Wyman, Rafferty, and Ingalls (1944). Laurent. Bouscayrol, Dunan, and Borgomano (1956) have carried out salting-out experiments using adult, foetal, and thalassaemic methaemoglobins, and observe differences in the shapes of the curves compared with the corresponding carboxyhaemoglobins.…”