Following comes an assemblage of very different outward aspect. These are 105 specimens of the “Pocket Library,” which are collectively known as Type J. They are uniform, small octavo pamphlets of thirty-two pages each, with the front covers occupied by illustrations in black-and-white. The very first issue of this series is shown. It is Edward Wheeler’s story of “Deadwood Dick, the Prince of the Road.” Among the more important items in this division of the collection are Omohundro’s story of the Scout New Wylde, Captain J. F. C. Adams’ “Oregon Sol,” the same famous pioneer’s tale of “Nick Whiffle’s Pet,” Mayne Reid’s “The Yellow Chief,” Prentiss Ingraham’s “Buffalo Bill’s Bet,” and Ingraham’s “Pony Express Rider.” The dominant motif of this series is far western adventure, but there are also numerous stories portraying life in New York City. The succeeding group (belonging to Type K) reveals another striking reversal of form and outward appearance. These are fat little 12mo books of about 200 pages each, with colored illustrated covers. But much of the coloring used in decorating the covers in this series, was not done by the printing press. It was performed by paint brush and human hand, on each separate volume, as part of the original publication process. As a result of this innovation, and also of course due in part to the increased size of the books, these volumes were sold at 20 cents each. Their publication began in 1871, and but few titles appeared. They are now exceedingly rare, although fifteen of the thirty-one known items of the series are shown by the Library, including No. 1. It is Albert Aitken’s story of “Overland Kit.” No. 11 is “Idaho Tom,” by Oll Coomes; No. 17 is Mrs. Victor’s “Turkey Dan”; No. 27 is Buffalo Bill’s “Deadly Eye,” and No. 29 is Badger’s “Old Bull’s Eye.” All are attractive and well-made little volumes. “Deadly Eye” is embellished by a cover portrait of Cody, done in colors. Following the Type K books in the exhibition come 317 issues of the “Beadle’s Half-Dime Library.” Somewhat more than one thousand titles appeared in this series, and the Library’s collection, therefore, contains nearly one-third of the titles published in this form. As their collective name indicates they were sold for five cents, and were the most ephemeral of all the Beadle imprints. Millions of them came from the press, but, owing to their cheapness, form, and popularity, virtually none were saved.