Geology of the San Juan metropolitan area, Puerto Rico.
1959. US Geological Survey Professional Paper 317-A; 48 pp. 5 fig. 7 photoplts. h.t. 2 fold. maps in pocket, incl. col. geol. map 1:30,000. Orig. wrps. very good, 4to.
Geology of Isla Mona, Puerto Rico, and notes on age of Mona passage, with a section on The petrography of the phosphorites.
1959. US Geological Survey Professional Paper 317-C; pp. 141-178, 7 fig. 2 photoplts. h.t. 1 plt. with map in pocket. Orig. wrps. with libr. stamp, very good, 4to.
Geological reconnaissance in northern Sierra Madre occidental of Mexico.
1939, Bulletin of the Geological Society of America Vol. 50-11; pp. 1625-1722, 7 fig. 3 photoplts. 3 fold. plts. 1 fold. & col. pl. w. geol. map. In complete journal issue, orig. wrps. w. libr. stamp.
Geology and paleontology of the Permian area northwest of Las Delicias, southwestern Coahuila, Mexico.
1944, Geological Society of America Special Paper 52; 172 pp. 29 fig. 3 fold. plts. 5 photoplts, 37 plts. w. fossils (microfossils, brachiopods, cephalopods). Orig. wrps. libr. stamp.