(3) Books on large local industries--shoemaking, pottery, agriculture--are often lacking. In such cases there is generally a lack of demand; but this is because the persons who would read such books have learned by experience not to look for them in a public library. (4) Books in the languages spoken by industrial colonies of foreigners in the neighborhood are usually conspicuous by their absence. (5) The collections in classes where some technical knowledge is necessary for selection, such, for instance, as the sciences, the arts, or history, often show a lack of intelligence, or, at any rate, a lack of system. There are badly written books and books full of errors; there is lack of uniformity in grade--an advanced mathematical work on electricity, for instance, and very elementary ones on light and sound. (6) In particular, controverted subjects are represented in a one-sided way; there may be no way for a reader to get at the Catholic story of the Protestant reformation, or the southern view of the civil war, or both sides of the spelling reform or the woman-suffrage movements. Socialism, vivisection, anti-vaccination, the negro question, prohibition, the tariff--all these and a hundred others are represented only in a partisan sense. (7) There is too much care about the outward garb of decency and too little about the pervading atmosphere of morality. Books that describe in decorous language ingenious methods of shop-lifting are given place, but you look in vain for works of lofty moral tone couched in diction that is occasionally coarse. How far are these faults due to methods of book selection? One of the troubles seems to be that the book-selecting body does not avail itself of expert advice as much as it ought. The librarian is learning, to be sure, to use lists and printed aids more and more, though they are rarely used with discrimination; but supplementary to such lists as these, especially since they so largely lack the personal element, we need the personal advice of experts. If the lists and reviews will leave us in the dark about the man who advises us to buy books on engineering or art, we must go to someone who we know understands these subjects, at least knows a little more of them than we do ourselves. There are, in general, two grades of expert advice. The first is that received from the man who is personally familiar with the current literature of his specialty, who watches the books as they appear and who sends to the library the titles that he thinks it ought to have. This grade of expert service is very difficult to obtain. I have found few men in my experience who are able and willing to give it. Those who have the good-will and the time have usually not the knowledge; those who have the knowledge are busy men who cannot give the time.