AN ALCHEMICAL COMPILATION OF THE THIRTEENTH CENTURY, A.D. 77 
3. The method of coagulating Mercury for ‘ the Red.’ 
4. The method of carrying out the process of Takhniq 1 2 with the coagulated 
mercury that is employed in making ‘the Red.’ 
5. The Calcination of Gold or Copper. 
6. The dissolution of Vitriol and other salts. 
7. The extraction of the Tincture from Sulphur. 
8. The manipulation of the Tincture. 
9. The treatment of the Dregs, or the preparation of White Sulphur. 
10. The process of Dissolution. 
11. The process of Coagulation. 
12. How the work is finished. 
Several of the processes are similar to those given in the mediaeval I v atin trea- 
tise ‘ De Re Recta’ 1 ascribed to Ibn Sina, and though the present work is not 
mentioned by the 13th Century bibliographer, Ibn Abi ‘UsaibPah, there appears no 
reason to doubt its authenticity, as Ibn Sina was a pupil of an Abu Bakr Al-BarqR 
about the year 1005 A.D.; 3 and is recorded to have written for his master a work 
of 20 volumes, in which this treatise might well have been included. 
The text is found both in MS. No. 16 and MS. No. 17 of the Rampur Ribrary. 
In the former the conclusion runs as follows: “Finally the mixture is coagulated. 
If these dissolved substances are filtered before being combined, the greater will be 
the potency of the Elixir for the work. This is the Elixir prepared from Sulphur.’’ 
“ Finished in the city of Mausil (Mosul) — 
May God guard it ! — on the last day 
of the 2nd Jumada in the year 682. 
Praise be to God, the Ford of the Worlds, 
the praise of those who are thankful ! 
And May His blessings and everlasting peace 
be on Muhammad and his holy family ! ’ ’ 
In the more modern MS. No. 17, the colophon giving the date on which our 
13th Century copyist finished his work, is replaced by several phrases of laudation 
to God and the Prophet. 
XVII. A Persian extract, giving three prescriptions. No names occur. (Folio 
100 v., top, to f. 101 r., bottom). 
XVIII. The T a ‘ widhu-l-H akim , ascribed to Al-Hakim, Fatimid King of Egypt, 
who ruled from A.D. 996 to 1020 (Folio 101 v., top, to f. 120 r., 1 . 1). The story of how 
the Ta‘widh is said to have come into the possession of one Ahmad ibn Sa‘dullah 
Al-‘Abbasi, or Al-Hashimi, as well as its prior history , is given at length in the two 
prefaces (of which the first, and the Introduction to the second, are quoted below), 
1 A variety of sublimation ; cf. Mem. Asiatic Soc. Bengal, I, 4, p. 62). 
2 Cf. Theatrmn Chemicum, Vol. IV (Zetzuer's 1659 Strasburg ed.), pp. 863-875. 
s Op. cit. (A. Muller’s ed.), II, p. 4 ; Carra de Vaux’s Avicenne, p. 136. 
