00901nam a22002411 4500 gs 39000052 DLC 20260227111344.0 811021s1938 fi abf b 00010 eng gs 39000052 //r81 U.S. Geol. survey. Library (579) B no. 122 QE276.3 .A6 no. 122 552/.4 19 Hietanen, Anna Martta, 1909- On the petrology of Finnish quartzites, by Anna Hietanen. With 29 figures in the text, 8 plates and 3 maps. Helsinki, Government press, 1938. 118 p., 4 l. incl. illus., tables, diagrs. viii pl. (part fold.) 3 maps (1 fold.) 25 cm. Finland. Commission géologique. Bulletin no. 122 At head of title: Suomen geologinen toimikunta. Bibliography: p. 114-118. Quartzite. Petrology Finland. 27512 27512