In 160 pages the author tells the story of Ida Noddack, the distinguished chemist who discovered the metal rhenium in 1925 and predicted the “splitting” of the uranium atom in 1934. He relates the circumstances under which he met her and her husband Walter Noddack in 1955, and then met her again in 1969. The book is illustrated with numerous photographs, many of them in color and contains facsimile of 12 letters and 4 historical papers by Ida Noddack. Table of Contents: 1. Biographical Note 2. Meetings the Noddacks 3. IUPAC 1961 4. Rhenium 1965 5. Hydrometallurgy 1969 6. Ida Noddack, 75 & Element 75 7. The Missing Elements 8. Nuclear Research at the time of Noddacks 9. Germany at the time of Noddacks 10. Epilogue 11. Letters 12. Papers 13. Appendix