Rauhwackes in the Betic Cordilleras, Spain

The Transvaal ape-man-bearing cave deposits

C. K. Brain

Breccia pipe and geologic map of the southeastern Hualapai Indian Reservation and vicinity, Arizona

George H. Billingsley

Ash-flow eruptive megabreccias of the Manhattan and Mount Jefferson calderas, Nye County, Nevada

Daniel R. Shawe

Breccias and coarse fragmentites

Peter Laznicka

Occurrences of exotic breccias in the Petitot Islands (85 H/10) and Wilson Island (85 H/15) map-areas, East Arm of Great Slave Lake, District of Mackenzie

E. W. Reinhardt

Pristine igneous rocks and the early differentiation of planetary materials

Paul H. Warren

A mineralogical look at the purple and green phyllitic sheared breccia from the Hammond terrane, Chandalar D-6 Brooks Range, Alaska

Walter B. Friesen

Geophysical studies of breccia pipe locations on the Hualapai Indian Reservation, Arizona

R. M. Senterfit

The Tuscan formation of northern California

Charles Alfred Anderson