=Printed Cards.=—The use of the Library of Congress cards will be found a great labor saver. If, at the time of ordering the cards, a temporary slip bearing call number, author, title, place and date of publication, accession number and suggested subjects and analyticals be written, a second examination of the book on the receipt of the cards will be unnecessary, unless the cards disagree with the book in some of the data noted. The Library of Congress, on application, will send instructions for the ordering of cards. Although it is cheaper to order cards by serial numbers, it will not pay the cataloger to spend much time searching for this number as for 1/2c per title the Library of Congress will do this work. The use of the printed cards, though it will destroy the uniformity of appearance of the catalog, will in no way detract from its usefulness or usableness. =Essentials.=—The cataloger must constantly bear in mind that the catalog is a machine for the use of the public. Any time spent in making it serve the readers more easily and quickly is time well spent. Any time spent in beautifying it simply for the glorification of the cataloger is time wasted. Rules,—careful, detailed rules,—are needed so that the machine may do its work without friction and that every part may fit into its proper place, but any rules that hamper the user of the machine, should be promptly struck from the code. The cataloger is paid to make a time-saving machine, and this is her duty,—to make a machine that will bring together the book and the man who wants it with the least expenditure of effort on the part of the latter. “If the trustees can afford it,” very rightly says Miss Esther Crawford, “there is one substitute for a catalog, viz., a librarian who knows intimately every book in the library; who has the memory for each book and that fine, discriminating knowledge of the reader’s tastes and abilities which will enable her always to fit the right book to the right person; who will never be absent from the library during the ten hours in which it is kept open every day in the year; who will never die nor take a vacation,—marriage is out of the question.”[1]