الفهرس 
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Abstract
The work presented in this thesis comprises the phytochemial investigation of three wild plants growing in Egypt.
Astragalus alexandrinus Boiss, Astragalus trigonus DC. Astragalus tribuloides dc & Del.
The aim of this work is to isolate and identify the saponion contents together with other valuable constituents of these plants, using different chemical and spectral methods.
Thesis divided into 5 parts.