Amber and the Dammar of Living Bees

Abstract

IN the issue of NATURE for June 3, 1922 (vol. 109, p. 713), a letter is published from Prof. T. D. A. Cockerell, of the University of Colorado, on “Fossils in Burmese Amber.” This refers mainly to amber obtained from the amber mines in the Hukong Valley, which I visited in February 1921. In that letter Prof. Cockerell, after investigating the insects preserved in specimens of the amber, agrees with me in placing the age of the amber-bearing beds as the earlier part of the middle Eocene, there being no doubt that the Nummulites found by me are actually Nummulites biaritzensis d'Arch.