albert abraham michelson alexander dallas bache alexander emanuel agassiz alexander wetmore alfred newton richards american association for the advancement of science andrew carnegie british columbia bruce alberts cambrian canada charles doolittle walcott medal charles greeley abbot detlev bronk fossil frank press frank rattray lillie frederick seitz invertebrate ira michael heyman ira remsen joseph henry leonard carmichael louis agassiz mary vaux walcott mount burgess oliver wolcott gibbs oology othniel charles marsh paleontology philip handler precambrian president president of the american association for the advancement of science rockies samuel pierpont langley science and technology in canada sidney dillon ripley smithsonian institution spencer fullerton baird stephen jay gould stratigraphy thomas hunt morgan united states united states national academy of sciences william barton rogers william wallace campbell