Miraculum mundi, sive, Plena perfectaque descriptio admirabilis naturae, ac proprietatis potentissimi subiecti : ab antiquis menstruum universale sive mercurius philosophorum dicti : quo vegetabilia, animalia & mineralia facillime in saluberrima medicamenta & imperfecta metalla in permanentia ac perfecta transmutari possunt - Glauber, Johann Rudolf, 1604 -1670 (Apud Joannem Janssonium, 1653)

Shells and sea life - Long, Steven J. (Miranda Enterprises, 1984)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1947)