 His illustration of a fossil, "Transverse section of madrepore" in "The" "Westminster Review" of September 1840 is credited with being the first example of the use of limelight to shorten exposure times when making daguerreotypes.Capt.Levett Landon Boscawen Ibbetson was the son of Sophy and Major Levett Ibbetson, who was son of James Ibbetson.