Certain specific reproductions are to be guarded against. Many fraudulent copies of Hiroshige's "Monkey Bridge" and "Kiso Snow Gorge" are on the market; all those I have ever seen are so poor in colour and so different in line-details that it seems incredible that anyone should be deceived. Several of the Tokaido Set have been imitated, rather poorly; and also some of the Birds and Flowers. Quite recently, there has appeared a remarkable Lake Biwa set, produced with such beauty and skill that several of the greatest authorities in the world were at first deceived by it. Hokusai's "Imagery of the Poets," "Waterfalls," "Thirty-six Views of Fuji," and "Loocho Islands," have been reprinted; the colours and the lines are a little imperfect; and no one who uses care need be misled by them. They are, however, good enough to be dangerous to the beginner. Utamaro's most famous works, particularly the "Awabi Shell-Divers" triptych, have been reprinted fairly well. Perilous imitations of several of the Primitives are extant; the stiff paper is almost the only means of detection. Sharaku has been reprinted dangerously well; one lately discovered fraudulent print of his sold for a high price at Sotheby's some years ago, and subsequently passed unquestioned through the hands of a dozen English and American experts, until finally an accidental comparison of it with a genuine sheet revealed points of difference. Another copy of this same reproduction remains to this day as the treasured possession of a well-known English collection. Possibly the most dangerous of all forgeries and reprints are those of Harunobu's small square prints, for they have sometimes been produced with notable skill. Even the greatest experts have been deceived by them. Fenollosa, at No. 131 of the Ketcham Catalogue, describes in the most glowing terms, as "the central point of all Ukioye," a print which its present owner has found to be a reproduction, not thirty years old, and has discarded from his collection. The reputable dealers, often men of much experience, never offer reproductions for sale, though they, like any one else, may occasionally be deceived by the finest of the fraudulent ones. They use their best skill to protect their customers, and the protection is generally efficient. If, however, a dealer is unwilling to give assurance in writing that the print is genuine, or if his stock contains more than the two or three reproductions accountable for on the ground of bad judgment, he should be avoided as untrustworthy.