—— —— Same. Nos. 72-75. [Contents already noted.] Washington, 1892. 660pp., 6 pls.1.00

H.R. mis. doc. no. 23; 51st Cong., 1st sess.

—— —— Same. No. 76. [Contents already noted.] Washington, 1892. 393pp..25

H.R. mis. doc. no. 24; 52d Cong., 1st sess.

—— —— Same. Nos. 77-80. [Contents already noted.] Washington, 1892. 494pp., 21 pls.1.00

H.R. mis. doc. no. —; 52d Cong., 1st sess.

—— —— Same. Nos. 81 and 82. [Contents already noted.] Washington, 1892. 720pp., 6pls.1.00

H.R. mis. doc. no. 25; 52d Cong., 1st sess.

—— —— Same. [Separate.] Nos. 71-83 and 91. [For contents see U.S. Geological Survey.] Washington, 1891.

—— —— Suggestions for the preparation of manuscript and illustrations for publication by the Survey. By W. A. Croffut. January, 1892. 15pp.