Palo de Campeche — the Yucatán dyewood that became the world's nuclear stain

A tree of the flooded lowlands of Yucatán gave a Spanish American port its export and its name, and gave modern pathology haematoxylin, still the standard nuclear stain. Alcedo's 1786 dictionary, read from the scan, records the palo de tinte trade, the raids that wrecked it and the parish for enslaved people in the same article. Modern papers carry the chemistry and the range. The cost is on the record beside the contribution, each bound to what says it.