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Four fifths of 49 patients with chronic, severe anemia from birth have manifested, usually during the second decade, signs of hemochromatosis with cardiac involvement. Nineteen patients had 33 attacks of pericarditis. Congestive cardiac failure with arrhythmias developed in 26 patients, and all but one died with this complication. Four others died of sepsis before heart failure was evidenced. Postmortem examination showed hemochromatosis with severe myocardial involvement.

Inductive reference machmes (IIMs) synthesize programs, given examples of their intended input-output behavior. Several different criteria for successful synthesis by llMs are defined. A given criterion is said to be more general than some other criterion if the class of sets which can be inferred by some IIM with respect to the given criterion is larger than the class of sets which can be referred by some IIM with respect to the other criterion A team of IIMs synthesizes programs for a set of functions if and only ff for each function m the set, at least one of the IIMs m the team successfully synthesizes the proper program. The trade-offs between the number of IIMs involved in the learnmg process and the generality of the criteria of success are examined