“…In other respects ossification appears to proceed normally. The cartilage cells mature and align themselves normally so this condition is easily distinguished from achondroplasia where one of the outstanding abnormalities is the failure of the cartilage cells of the epiphysis to align in normal palisades (Knaggs, 1927;Harris and Russell, 1933;Pearce and Brown, 1945;Weinmann and Sicher, 1947;Potter, 1952).…”