INCIDENTS OF A TRIP GRHAT PLATTE VALLEY, TO THE ROCKY MOUNTAINS AND LARAMIH PLAINS, IN THE FALL OF 1866, WITH A SYNOPTICAL STATEMENT OF THE VARIOUS PACIFIC RAILROADS, AND AN ACCOUNT OF THE GREAT UNION PACIFIC RAILROAD EXCURSION TO THE ONE HUNDREDTH MERIDIAN OF LONGITUDE. New Dork: D. VAN NOSTRAND, No. 192 BROADWAY. 1867.