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Professor [Alexander Mauro] was a co-inventor of the radio-frequency cardiac pacemakers, one of the first pacemakers. Born in New Haven, Professor Mauro graduated from Yale University, where he also earned a doctorate.

Dr. Erlich taught at Columbia for more than 25 years. He wrote ''The Soviet Industrialization Debate: 1924- 1928,'' first published in 1960 and widely regarded as a definitive work. Dr. Erlich was honored for his ''profound humanism'' by his colleagues and friends in 1983 with the publication of a collection of essays by economic theorists and Soviet specialists entitled ''Marxism, Central Planning and the Soviet Economy.''

A. M. Rosenthal (''Here's a Strange Story,'' column, March 5) finds it strange that nobody laughs comparing what is going on now in Washington and Moscow. ''Ronald Reagan,'' he writes, ''product of a free society, pays the price of violating its rules and ethic to free some hostages. And Mikhail Gorbachev, product and beneficiary of a totalitarian state, is canonized in his lifetime for releasing . . . Moscow's own political hostages.'' He ends with a question: ''Nobody mentions the ironic madness of it all. Is anybody else laughing at all?'' Among those not laughing might have been mentioned not only ''diplomats, writers and artists,'' but some of the released ''hostages'' as well, particularly one A.

\"It is unclear,\" Dr. [Alexander Stephan] wrote, \"why [Erika Mann], of her own free will and over such a long period of time, brought information and potential collaborators to [J. Edgar Hoover]'s F.B.I.\" Miss Mann's file contained many anonymous denunciations of her as a leftist sympathizer or Communist \"fellow traveler,\" said Dr. Stephan, who earned his Ph.D. from Princeton University. One such anonymous informer, he said, asserted that Miss Mann was \"responsible for the 'leftist' writings attributed to her father and her uncle.\" A Marriage to W. H. Auden The F.B.I. files found ways to taint Miss Mann with even innocent facts. For example, she and the English writer W. H. Auden had agreed to marry in 1936 to ease Miss Mann's escape from the Nazis by making her eligible for a British passport. The F.B.I. listed \"Mrs. Wystan H. Auden\" as one of her many \"aliases\" and described the marriage as one of convenience.

If it turns out that Haiti becomes a textbook case of successful coercive diplomacy, analyzed and mulled over by future generations of students and makers of foreign policy, credit will be owing to those who developed the doctrine. Mr. [William Perry] came to the Clinton Administration from directorship of the Stanford Center for International Security and Arms Control, where Prof. Alexander George formulated the doctrine in a 1971 book. We should recognize this example of the academy in the country's service at a time when we seem to have very little pride in anything. GABRIEL A. ALMOND Professor of Political Science Stanford University Stanford, Calif., Sept. 23, 1994

The increasing competitiveness of the health care market has driven both investor-owned and non-profit hospitals to impose strict managerial controls in order to maximize revenues. Although concern for high quality care cannot be equated with physicians having a large voice in management any more than administrative control equates solely with financial concerns, giving physicians greater say in hospital decision making can improve the quality of care. Yet, as hospitals have become more technological, capital intensive and complex, managerial control has begun to replace physicians' autonomy. Finally, hospitals receive fixed payments from insurance companies for each admission while physicians continue to be paid on a fee-for-service basis. Thus, hospitals want doctors to provide less extensive treatment. Some hospitals have gone beyond appealing to physicians' loyalty and high-minded desire to reduce health-care spending. Instead, they have developed incentive programs in which savings are shared with the physicians. The Institute also concluded that it is ''unethical and unacceptable'' for physicians to own shares in health facilities to which they make referrals or receive payments for referrals. A final recommendation was to end hospital incentive systems that reward physicians for shortening patients' hospital stays except when patients are parties to the agreements.

''What is the legal and moral status of an embryo in the laboratory prior to implantation,'' Professor [Alexander Morgan Capron] asked, ''and how does that change from minute to minute or day to day as it develops?'' Questioning the legality of surrogate motherhood, Professor [Angela R. Holder] applied the 13th Amendment's prohibition against the sale of one person by another to a money transaction between the surrogate and those who hire her. ''When you pay somebody to have a baby,'' said Professor Holder, ''you're buying the baby.'' Dr. John A. Robertson, the Marrs MacLean Professor of Law at the University of Texas Law School, takes the position that the ''constitutional right'' to have a child should not be limited because of ''moralistic rhetoric.''