Note 21 — TRANSACTIONS (continued 3)
Reading edition
“Coal Testing Plant, St. Louis, Mo.,” by R. H. Fernald, Professional Paper No. 48, Vol. III, U. S. Geological Survey, 1906.
Reading edition
“Coal Testing Plant, St. Louis, Mo.,” by R. H. Fernald, Professional Paper No. 48, Vol. III, U. S. Geological Survey, 1906.