Brassicaceae greens, Savoy, kohlrabi, and gai lan ("Brassica oleracea"), turnip, napa cabbage, bomdong, bok choy and rapini ("Brassica rapa"), rocket salad/arugula ("Eruca sativa"), garden cress ("Lepidium sativum"), watercress ("Nasturtium officinale") and radish ("Raphanus") and a few spices like horseradish ("Armoracia rusticana"), "Brassica", wasabi ("Eutrema japonicum"), white, Indian and black mustard ("Sinapis alba", "Brassica juncea" and "B. nigra" respectively). Vegetable oil is produced from the seeds of several species such as "Brassica napus" (rapeseed oil), perhaps providing the largest volume of vegetable oils of any species. Woad ("Isatis tinctoria") was used in the past to produce a blue textile dye (indigo), but
Derek Bok magazines such as "The Saturday Evening Post". Derek Bok Derek Curtis Bok (born March 22, 1930) is an American lawyer and educator, and the former president of Harvard University. Bok was born in Bryn Mawr, Pennsylvania. Following his parents' divorce, he, his mother, brother and sister moved to Miquon, Pennsylvania. He attended The Miquon School, a progressive school that his mother co-founded in 1932, and the UCLA Lab School. He graduated from Stanford University (B.A., 1951), Harvard Law School (J.D., 1954), attended Sciences Po, and George Washington University (A.M., 1958). Bok taught law at Harvard beginning in 1958 and was