11.   He usually uses it in desserts, like wrapping a whole pineapple in a tobacco leaf.

12.   In all the products, the nicotine is extracted from tobacco leaves.

13.   In the experiment, reported in the journal Nature, the tobacco leaves that were eaten by unaltered caterpillars had about one-quarter less nicotine than the others.

14.   Now, once again, hundreds of acres of white netting have been deployed to protect delicate tobacco leaves so they can fulfill their destiny as luxury cigars.

15.   On the walkway to his white-columned house is a green flag with three tobacco leaves.

16.   Quotas cause prices to rise artificially at auction houses, where cigarette companies bid on batches of tobacco leaf.

17.   Royce also likes Standard Commercial, which processes tobacco leaves and has a substantial wool business.

18.   Simply put, it is nicotine that the company removes from the tobacco leaf during processing, and later puts back.

19.   Shortages of tobacco leaves and skilled labor, mostly due to the high demand, have become a serious problem, too.

20.   So commercially important was the crop that concrete columns throughout the Capitol building are decorated with facsimiles of tobacco leaves.