Prof j j r macleod (1 risultati)

Soft cover. Condizione: Very Good. pp723-739. Removed from ANNUAL REPORT OF THE BOARD OF REGENTS OF THE SMITHSONIAN INSTITUTION FOR THE YEAR ENDING JUNE 30, 1913. VG. In plastic report covers. From the introduction: "Leonardo, in his treatise on painting says: 'Those who become enamored of the practice of the art without having previously applied themselves to the diligent study of the scientific part of it, may be compared to mariners who put to sea in a ship without rudder or compass, and therefore, can not be certain of arriving at the wished for port. Practice must always be founded on good theory.'" The writer then points out how Leonardo's ideas were not adhered to for several centuries. during which colors came to be less and less successfully employed.…