References and Links

1.  Allen, R L M, Colour Chemistry, 1971, Nelson, Great Britain.

2.  Christie, R M, Colour Chemistry, 2001, Royal Society of Chemistry, Cambridge.

3.  A History of Dyes.

4.  The Woad Page.  

5.  Chemistry of natural and synthetic indigo dyes.

6.  From caveman to chemist.

7.  Clothing of the Ancient Celts- Dyeing.

8.  Cochineal.

9.  The pigments page.

10.  Etherington and Roberts Dictionary.

11.  The Textile Artists Newsletter.

12.  Logwood and Brazilwood.

13.  Encyclopaedia Britania.