fragments of horse bones in the sandy lower zone, of which we collected two teeth, which I take to be Pleistocene. Then started SE for a big ditch cut, and found Pierre shale on the way. The latter cut is about half a mile E by N from the Wellington Station . At the west end Pierre shales are exposed, with numerous concretions as at Boulder brickyards. Fossils were few, but we collected Baculites ovatus , Nuculidae etc. Returned to hotel at 6 p.m. Retired at 9:15. Saw one bluebird .
Wellington, Colo. , March 18, 1910
Up at 6 a.m., a clear morning and cool. Started with team from Hall's stable at 7:10 a.m. 3 mi. N and 1 1/2 mi. W of Wellington found ditch cutting through Hygiene sandstone, containing Inoceramus spp. , Baculites , Anisomyon , Avicula , Ostrea etc. Reached Round Butte at 11:15. In creek bluff 1/2 mi. E of the butte Pierre dips SE 58˚, and is badly crushed.