“…The mean corpuscular haemoglobin concentration is usually low in thalassaemia (Marmont and Bianchi, 1947;Minnich et al, 1954;Wintrobe, 1961;Sturgeon and Finch, 1957;Lie-Ingo 206 12-Luan Eng, Kho Lien Keng, Liem Djwan Lioe, and Oei Oen Bie, 1959). However, this is not the first time that patients with thalassaemia have been found to have relatively normal mean corpuscular haemoglobin concentrations (Smith, 1943;Dhayagude, 1944;Smith, 1948;Valentine and Neel, 1948;Schwartz and Mason, 1949;Matoth et al, 1955;Siddoo, Siddoo, Chase, Morgan-Dean, and Perry, 1956;Vullo and Tunioli, 1958;Lie-Ingo Luan Eng et al, 1959;Lehmann, 1959;Choremis et al, 1961;Fessas, 1964).…”