11 – THE DISAPPEARANCE OF THE Tekhelet
- A. History of Tekhelet-dyeing in Israel; Centres of Production
- B. Palestine as the Source of Supply of Ritual Tekhelet to Babylonian Jewry
- C. Ritual Tekhelet and the Restrictions Placed by the Emperors upon the Manufacture and Sale of Purple
- D. Limits of Time Within Which the Total Extinction of Tekhelet shel tzitzit – the Tekhelet of the tzitzit – Must Be Placed
- E. References to Tekhelet shel tzitzit in the Gaonic Literature
- F. References to Tekhelet shel tzitzit in the Post-Gaonic Literature
- G. An Attempt made by G.E. Leiner of Radzin to Restore Tekhelet shel tzitzit; History of the Radzin-Tekhelet
- H. Results Obtained from the Chemical Examination of Samples of the Radzin-Tekhelet