00827cam a22002771 4500 gs 59000191 DLC 20260227111408.0 780914s1958 inuabf b s000 0 eng gs 59000191 (OCoLC)4224928 DLC UU OCoLC DLC premarc QE109 .A32 no. 13 561.13097724 Guennel, Gottfried Kurt, 1920- Miospore analysis of the Pottsville coals of Indiana. Bloomington, 1958. 101p. illus.,6 plates,maps,diagrs.,tables. 23 cm. Indiana. Geological Survey. Bulletin no. 13 Bibliography: p.87-89. Coal Indiana. Plant spores. Paleobotany Carboniferous. Paleobotany Indiana. 29355 29355