171. Ridgway, R. Birds of the Galapagos Archipelago. Proc. U. S. Nat. Mus., V. XIX; pp. 459-670. Paper, charts and plates, valuable. Wash., 1896.$1.25

172. Ridgway, R. The Humming Birds. Printed paper covers, uncut, unopened, 46 plates, 383 pp. Smiths. Inst., Wash., 1892.$1.75

173. Ridgway, R. A Manual of N. American Birds. 464 outline drawings of the generic characters. Portrait of Spencer F. Baird. 4th ed., as new, 631 pp.$7.50

174. Ridgway, R. and Forbes, S. A. Ornithology of Illinois. Part 1, Descriptive Catalogue by Ridgway; part 2, Economic Ornith. by Forbes. Nat. Hist. Survey of Illinois. Vol. 1, 33 plates, frontis. colored, royal 8vo, cloth, as new, useful, but scarce. All published. Springfield, 1889.$6.00

175. Rhoads, S. N. Set of Author’s 7 or 8 Excerpts on American Birds. Published in the Amer. Nat., Auk, etc., mostly in printed covers, includes big paper on birds of Washington and British Columbia.$2.00

176. Rhoads & Pennock. Birds of Delaware. A Preliminary List. (From “The Auk,” April, 1905), 12 pp., author’s separate, paper covers. A first published attempt on Delaware Ornithology.40 cents

177. Robinson, W. A Flying Trip to the Tropics. Record of an Ornithological Visit to the U. S. of Columbia, S. A., and Island of Curacao, West Indies. As new, gilt tops, map and col. plates of birds and other illus., a fine work out of print. Cambridge, 1895.$2.50

178. Salvadori, T. Borean Birds. Uccelli di Borneo, Catalogo Sistematico. Con Note ed Osservazioni di G. Doria ed O. Beccari, etc. Paper, uncut, col. frontis., map and 5 col. plates, 429 pp., autogr. pres. copy to Dr. E. Coues. Annali Mus. Cir. to Nad Genova, V. 5, 1874.$3.00

179. Samuels, Edward A. Our Northern and Eastern Birds, Containing Descriptions of Birds of Northern and Eastern States and British Provinces, etc. Royal 8vo, half mor., gilt top., 600 pp., illus., some colored reproductions of Audubon plates, supplement by Holder. Ex Libris C. L. Wheeler. Pub. at $10.00. N. Y., 1883.$4.75

180. Samuels, E. A. Among the Birds. Sketches for Young Folks of the Domestic Life of Birds. 12mo, illus., rare. Boston, 1868.$1.25