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- Title: Lecture: Problems of Nutrition
- agricultural methods, artificial fertilizers and lengthy delays
- Title: Lecture II: Nutrition and Health
- mineral kingdom: mineral fertilizer!
- And you can see, gentlemen, when one uses mineral fertilizer, it is as
- fertilizer simply by combining substances that are present in cow
- If there is to be nothing but the mineral fertilizer that has now
- Title: Evolution, Earth, Man: Lecture VII
- out of the mineral kingdom: mineral fertilizer!
- fertilizer, it is as if one just put minerals into the ground; then
- one can make fertilizer simply by combining substances that are
- If there is to be nothing but the mineral fertilizer
- Title: Evolution, Earth, Man: Lecture X
- For there, through manure and the substances added as fertilizers,
- Title: Health and Illness I: Lecture IX: Why do We Become Sick?
- kind of organic fertilizer I have added sulphur and phosphorus
- Title: Lecture: Riddles of the Soul and Riddles of the Universe
- the earth, or perhaps also the fertilizer is present in it,
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