Adair Crawford



  He was a professor of chemistry at Woolwich, England, and physician at St. Thomas’s Hospital in London, who investigated minerals from Strontian, Scotland, and proposed an earth separate and intermediate between “calcareous and ponderous spars” (i.e., calcium and barium minerals). Discoverer of strontia, he characterized it and was the first to recognize it as a distinct element.  


  1. London, England (Southwark)

Copyright 2018, Dr. James L. Marshall and Virginia R. Marshall
All Rights Reserved.