Whitfield, Robert Parr, 1828-1910.Seely, Henry Martyn, 1828-1917.2005-10-062005-10-061889http://hdl.handle.net/2246/848p. [64]-65, [2] leaves of plates : ill. ; 24 cm.137694 bytesapplication/pdfen-USQH1 .A4 vol.2, art.4, 1889Asaphus canalis.Trilobites -- Vermont -- Vergennes Region.Trilobites -- Champlain, Lake.Arthropoda, Fossil -- Vermont -- Vergennes Region.Arthropoda, Fossil -- Champlain, Lake.Paleontology -- Ordovician -- Vermont -- Vergennes Region.Paleontology -- Ordovician -- Champlain, Lake.Paleontology -- Vermont -- Vergennes Region.Paleontology -- Champlain, Lake.text