Harding Black, San Antonio ceramist from the 1930s - 1990s, did extensive research in his attempts to recreate Chinese glazes from the Song and Tang dynasties. This free website contains background information on Harding Black, images of his ceramic works, and formulas/recipes for his glazes that have been confirmed by testing done at Baylor University. Only some content has been digitized.
A searchable database which will give you citation information only (no full text) for numerous articles about architectural terra cotta. Get a citation and then see if we have the full text in one of our UTSA databases.