автор: Charles G. Gebelein

The vast array of libraries in the world bear mute witness to the truth of the 3000-year-old observation of King Solomon who stated " … of making many books there is no end, and much study is …

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The art of using chemical agents for medication dates back into antiquity, although most of the earliest examples used plants, herbs, and other natural materials. The old Egyptian medical papyri, whi …