    “Sentence 1: What was -the mémoir-entitled which: was  Submitted to the American Philosophical Sotiety?    Sentence: 2. Thé results of his’ undided labours were  submitted to .the American-Philosophical: Society. ina  memoir: entitied Observations on: the-Geology, of the  -United- States, explariatory: of ‘a Gealogica’ Map, and  ‘published. in the Society's Traftsattiots, together with  the nation’s first geological map. .