Hematoxylin and Eosin Hematoxylin and Eosin Hematoxylin and Eosin Hematoxylin: Mesoamerica's Gift to Histopathology. Palo de Campeche (Logwood Tree), Pirates' Most Desired Treasure, and Irreplaceable Tissue Stain. https://www.ncbi.nlm.nih.gov/pubmed/30001639