Bulletin

Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb. Part of the illustrative material is folded Vol. 1-ser. 2, v. 5 were published in Paris Ser. 2, v. 15, no. 3-4, ser. 3, v. 2, no. 2 and 4, v. 4, no. 2 and v. 7, no. 4 from Études sur le terrain houiller de Commentry Volume numbers irregular: ser. 5, v. 18, no. 4-6 called also ser. 5, v. 18-20 Vols. 1-15, 1855-70. 1 v.; Ser. 2, v. 1-15, 1872-86, with index for 1855-70; Ser. 3, v. 1-1