abuses assumed such proportions that in 1889 the Postmaster-General, Mr. Wanamaker, brought them to the notice of Congress and asked a remedy. Nothing was done, however. In 1892 Mr. Wanamaker again complained of the same gross abuses, and especially of the book abuse, which had then become, he said, "a practice of so long standing that it has crystallized into law, allowing to paper-covered books which are simply numbered, and dated, and designated as periodicals, though in reality not so, the privileges of genuine periodicals."[338] He also attacked with vigour the sample-copy abuse.[339] Several Postmasters-General caused estimates to be made of the actual cost to the Post Office of the handling and transmission of the second-class mail. An estimate made in 1894 indicated the cost of transportation for all mail matter as 8 cents a pound, and on that basis second-class matter at that time involved a loss of nearly 17 million dollars for transportation alone. In 1897 the total loss on account of the second-class mail was estimated at 26 million dollars. A further estimate made in 1901 indicated that the cost of transportation of second-class matter was at least 5 cents a pound, and that the cost of handling was a further 2 cents, giving a total cost of 7 cents a pound on matter for which postage at the rate of only 1 cent a pound was paid.[340] In 1905 Postmaster-General Cortelyou submitted an estimate which put the loss on second-class matter at some $27,000,000 a year; and he recommended that the whole question should be considered by Congress, and a law enacted which should simplify the tests by which mail matter was classified.