The book Ddt Killer of Killers was written by author O T Oswald Theodore Zimmerman Here you can read free online of Ddt Killer of Killers book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Ddt Killer of Killers a good or bad book?
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If one takes quinine regularly before he enters a malaria-infested district, and if he keeps up the treatment while he is there, the chances are that he will not get the disease — but he can't be sure, for some individuals become infeaed in spite of quinine pro- phylaxis. After one has contracted malaria, quinine treat- ment will lessen the severity of the disease, but it will not eradicate it. The story of quinine is very much like that of rubber. For over two hundred years after cinchona bark... was first used in the treatment of malaria, the world had to depend entirely for its supply on the wild trees of South America. Then the situation changed. Sir Clements Markham went to South America with an expedition in I860 and procured over 400 cinchona plants and a number of seeds, with which he started plantations in India. And two years later a Dutch expedi- tion under a botanist by the name of Hasskarl managed to get out of South America with about 500 cinchona plants and a number of seeds.
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