01212cam a22002651 4500 s 21000010 DLC 20260227111911.0 751117s1919 xx 000 0 eng c s 21000010 (OCoLC)1836951 Smithsonian inst. Library OKentU DLC Q11 .U6 no. 103, pt. 10 MacDonald, Donald F. (Donald Francis), 1875-1942. The sedimentary formations of the Panama canal zone, with special reference to the stratigraphic relations of the fossiliferous beds. By Donald Francis MacDonald. Washington, Govt. print. off., 1919. 525-545 p. illus. 25 cm. Smithsonian institution, United States National museum. Bulletin 103 [pt.10] At head of title: Contributions to the geology and paleontology of the canal zone, Panama, and geologically related areas in Central America and the West Indies. "Extract from Bulletin 103, pages 525-545, with plates 153-154." Sedimentary rocks. Geology, Stratigraphic. Geology Panama. United States National Museum. Bulletin ; 103 [pt.10] 52697 52697