Veity of Mexico; and it is continued beyond the northward and westward, in isolated patches. According to Hill (1893), all, ex- cept a small portion of the northeast, is a continuation of the Comanche group of Texas, but with less distinct subdivisions; and he concludes further that now Mexico during this time the Atlantic and Pacific oceans were united. He makes the thickness 20,000 feet (Davis). In Chihuahua and Coahuila Felipe de Lind report in a L.C. fauna of 46 about 37 as European species. Eocene. Along north Atlantic border. Geology of Mexico (Translation of Aguilera m.m.c. (1897) in Jour. Sed., v, 1897, p. 354- by Bain). Archean. A strip from near Mexico City No-VX and throug the axis f. Lower California. Ordovician. Other testudinaria is reported found at Cuesta de Santa Teresa in Guerrero. The locality has not been as-