For thousands of years, healers have used plants to cure illness. Aspirin, the world's most widely used drug, is based on compounds originally extracted from the bark of a willow tree, and more than a quarter of medicines found on pharmacy shelves contain plant compounds. Now Western medicine, faced with health crises such as AIDS, Alzheimer's disease, and cancer, has begun to look to the heali…
from the back cover: 'How can Mr Frank be angry now?' thinks Mike happily. His film is good and he is the only cameraman on the volcano. Now he can go home. But then he finds Jenny and she is dying. Rocks start to move and Mike is afraid. Can they get off the volcano alive? And what happens to Mike's camera and film?
from the back cover: When Tonya and her friends decide to sail around the world they want to see exciting things and visit exciting places. But one day, they meet an orca - a killer whale - one of the most dangerous animals in the sea. And life gets a little too exciting.
from the back cover: Help your students read their way to better English with this new edition of the world's best graded readers - now with a new range of World Stories, fully revised Factfiles, more audio, and new tests. The new edition includes the original Bookworms stories, plus the Starters, Playscripts and Factfiles, making it easy for you to see the full choice of books at each Stag…
from the back cover: The empty centre of Australia. The sun is hot and there are not many people. And when Bill meets a man, alone, standing on an empty road a long way from anywhere, he is surprised and worried. And Bill is right to be worried. Because there is something strange about the man he meets. Very strange . . .