MCGRAW HILL <MHP> BUYS HARPER/ROW <HPR> UNIT McGraw-Hill Inc said it bought <Medecines et Sciences Internationales SA>, a French Healthcare publisher, from Harper and Row Publishers Inc. The sum of the deal was not disclosed. It said the French company publishes original titles by French authors, as well as translations of American, British and German Medical books. The company will be consolidated with McGraw-Hill France, it said.