In a lecture at the Fogg Art Museum yesterday, Mr. Frederick Mortimer Clapp discussed the work of the Florentine painter, Pontormo. He considered the Italian Renaissance art, the great masters of this period, Leonardo da Vinci, Andrea del Sarto, and Michel Angelo, and their influence upon the work of Pontormo.

Jacopo Corucci da Pontormo, declared Mr. Clapp, was born in 1494 near Florence. He was left an orphan when quite young and was sent to study art. He never remained long under one master, and his work shows varied influences. Very few of his paintings are well known. The one which comes the closest to being famous is his "Lunette" at Poggio. Of all his productions, those showing the greatest ability are his drawings. He died lonely and disheartened in 1557.

Mr. Clapp has been spending some time studying museums in Boston and its vicinity. He is well known as the author of two books, "Les Dessins de Pontormo," and "Jacopo Carucci da Pontormo, His Life and Work."