tokens: The Master of Science in Forestry was authorized in 1917 , followed by the Master of Science in Economics ( later renamed the Master of Science in Commerce and eventually the Master of Business Administration ) ( 1923 ) , the Master of Science in Home Economics ( 1925 ) , the Master of Arts in Education ( 1930 ) , the Master of Science in Chemistry ( 1932 ) , and the Master of Science in Social Work ( 1934 ) .