15 Bisbee Section (Ravosme Prof. Pap. 98), Pinal schist and granite Bolsa Quartzite, 430! Rusty brown. Almigo li., 770'. Stintedded, in part sandy and clastic, with some shale. Dull greenish yellow, fossils Ralcott said Mid. C., may means Upper Carbonian, may have the Redmanium equivalent seen at Clifton. Martin li., 325'. Dark gray compact li. Spirif- ura hungayundi. Usually thick bedded. = Upper Devonian. Acervularia davidsoni, Pachyphyllum orrod- mori, Stomatopora enatica, Cyrtia cyrtiniformis, Dielasma calvini, Schizophoria striatula, Productella speciosa, Spirifura nosta, S. whitneysi, Stephonella caelota Escabrazo li., 600'-500' Pure non-graf. li., light- gray. = Kinderhook and Osage of Kan. Miss, Pachyphyllum excavatum, Chipidomella hiemaei, P. michelina, Leptaena aniloga, Schuchutella in-e qualis, Productus matius, Spirifura certhimatus, Isingothyris carteri, Athyris lamellosa, Eunetria marggi, Phillipsia purceidens, etc.