Alfred Harker Professions : GeologistBorn : February 19, 1859Died : July 28, 1939 Browse All Authors Quotes From Alfred Harker The laws of physics and chemistry must be the same in a crucible as in the larger laboratory of Nature. Alfred Harker cruciblelawscience Similar Authors Archibald Geikie geologist Bernhard von Cotta geologist Douglas Mawson geologist Ian Plimer geologist Hugh Miller geologist Henry Fairfield Osborn geologistAll Authors