NEW YORK, NY.- Two important medieval Hebrew manuscriptsa Mishneh Torah made between 1300 and 1400 in Germany and an illuminated leaf from a prayer book made in Austria around 1360are on display at The Metropolitan Museum of Art and The Cloisters, respectively, in conjunction with the Jewish High Holy Days this fall. The Cloisters is the Metropolitan’s branch museum dedicated to the art and architecture of medieval Europe. The High Holy Days are ten days of penitence and prayer that commence with Rosh Hashanah (Jewish New Year) and end with Yom Kippur (the Day of Atonement), the most solemn day of the Jewish year. This year, the High Holy Days begin the evening of September 8. On view in the Gallery for Western European Art from 1050 to 1300 in the Main Building of the Metropolitan, and on loan from The Library of The Jewish