Each Part of the 'Memoirs,' forms a separate and complete monograph, with numerous plates. MEMOIRS. Vol. I (not yet completed). PART I.--Republication of Descriptions of Lower Carboniferous Crinoidea from the Hall Collection now in the American Museum of Natural History, with Illustrations of the Original Type Specimens not heretofore Figured. By R. P. Whitfield. Pp. 1-37, pll. i-iii. September 15, 1893. Price, $2.00. PART II.--Republication of Descriptions of Fossils from the Hall Collection in the American Museum of Natural History, from the report of Progress for 1861 of the Geological Survey of Wisconsin, by James Hall, with Illustrations from the Original Type Specimens not heretofore Figured. By R. P. Whitfield. Pp. 39-74, pll. iv-xii. August 10, 1895. Price, $2.00. PART III.--The Extinct Rhinoceroses. By Henry Fairfield Osborn. Part I. Pp. 75-164, pll. xii_a_-xx. April 22, 1898. Price, $4.20. PART IV.--A complete Mosasaur Skeleton. By Henry Fairfield Osborn. Pp. 165-188, pll. xxi-xxiii, with 15 text figures. October 25, 1899. PART V.--A Skeleton of Diplodocus. By Henry Fairfield Osborn. Pp. 189-214, pll. xxiv-xxviii, with 15 text figures. October 25, 1899. Price of Parts IV and V, issued under one cover, $2.00. Vol. II. Anthropology (not yet completed). _The Jesup North Pacific Expedition._ PART I.--Facial Paintings of the Indians of Northern British Columbia. By Franz Boas. Pp. 1-24, pll. i-vi. June 16, 1898. Price, $2.00. PART II.--The Mythology of the Bella Coola Indians. By Franz Boas. Pp. 25-127, pll. vii-xii. November, 1898. Price, $2.00. PART III.--The Archæology of Lytton, British Columbia. By Harlan I. Smith. Pp. 129-161, pl. xiii, with 117 text figures. May, 1899. Price, $2.00. PART IV.--The Thompson Indians of British Columbia. By James Teit. Edited by Franz Boas. Pp. 163-392, pll. xiv-xx, with 198 text figures. April, 1900. Price, $5.00. PART V.--Basketry Designs of the Salish Indians. By Livingstone Farrand. Pp. 393-399, pll. xxi-xxiii, with 15 text figures. April, 1900. Price, 75 cts. Vol. III. Anthropology (not yet completed). PART I.--Symbolism of the Huichol Indians. By Carl Lumholtz. Pp. 1-228, pll. i-iv, with 291 text figures. May, 1900. Price, $5.00. BULLETIN. Volume I, 1881-86 Price, $5.50 " II, 1887-90 " 4.75 " III, 1890-91 " 4.00 " IV, 1892 " 4.00 " V, 1893 " 4.00 " VI, 1894 " 4.00 " VII, 1895 " 4.00 " VIII, 1896 " 4.00 " IX, 1897 " 4.75 " X, 1898 " 4.75 " XI, Part I, 1898 " 1.25 " " " II, 1899 " 2.00 " XII, 1899 " 4.00