MacLeod--County rural libraries, _pp. 120-130_. Marks--The principles of planning. _Chap. Library planning._ Philip--Lighting, heating and ventilation of libraries. _L.A.R. Vol. 9, 1907, pp. 225-230._ Sayers--The children’s library. _The English Library, pp. 78-116 and Appendix 1._ Soule--How to plan a library building for library work. _Boston, 1912._ Stansbury--Library buildings from a librarian’s standpoint. _P.L. November, 1906, p. 495._ Tilton--Scientific library planning. _L.J. September, 1912, p. 497._ Walter--Interior decoration of libraries. _L.A.R. Vol. 10, 1908, pp. 649-659._ QUESTIONS. _1._ Plan a combined children’s open-access lending library and reading room to accommodate _120_ children at a time, with _2_ assistants on duty. _2._ Tabulate the features or essentials you would look for in selecting a site for a public library. _3._ Give a specification of the principal items of furniture required for a library estimated to cost £20,000. _4._ Describe three different varieties of adjustable shelving; state which you would like the best and why. _5._ Name the principal conditions which should govern an architectural competition for a Central library building to cost £50,000. _6._ Write a brief essay on the organisation and equipment of a combined reference library and reading room for business men. _Lesson 4._ BOOK-BUYING AND ACCESSION METHODS. A knowledge of book purchase and accession methods is necessary in organising and administering a library service. The sources of supply, and the names of the different classes of publishers and booksellers should be known to all students. The steps to be taken in purchasing, say, 10,000 volumes, and what classes of books to buy second-hand should be carefully considered. Get acquainted with the methods of treating donations, and the principles governing the replacement of withdrawals should be known. Constant revision of stock is necessary in all libraries and advantage should be taken of the special opportunity which is presented whenever a new catalogue is contemplated. Note the difference between “reprints” and “new editions.” The recognised rules and principles on what to withdraw or discard should be carefully read. READING LIST. Aldred--Book selection and rejection. _L.A.R. Vol. 3, 1901, pp. 143-156._ Baker--Book selection. _L.A.R. Vol. 13, 1911, pp. 17-29._ Baker--Gift horses. _L.A.R. Vol 11, 1909, pp. 422-423._ Bostwick--American Public Library. _3rd edition, pp. 148-161._ Brown--Book selection. _L.W. Vol. 26, 1923-24, pp. 98-104._ Brown--Manual of library economy. _1907 edition. Sects. 215-235; 489-495. 1919 edition, Sects. 207-229._ Clarke--Scientific text-books, and the disposal of editions out-of-date. _L. Vol. 6, 1894, pp. 164-169._ Doubleday--Weeding out. _L.A.R. Vol. 6, 1904, pp. 327-335._ Duncan--Standardization in accession methods. _L.W. Vol. 9, 1906-07, pp. 83-87._ Formby--Donations. _L. Vol. 1, 1889, pp. 197-202._