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
Edward Bok listed on the National Register of Historic Places as a National Historic Landmark. Bok is used as an example in Dale Carnegie's "How to Win Friends and Influence People." Bok died on January 9, 1930 in Lake Wales, Florida within sight of his beloved Singing Tower. Two of his grandsons are Derek Bok and Gordon Bok. In 1895, Bok began publishing in "Ladies Home Journal" plans for building houses which were affordable for the American middle class – from $1,500 to $5,000 – and made full specifications with regional prices available by mail for $5. Later, Bok and the "Journal"