The Lending Department must cater for _8_% (_8,000_) of the population. We can assume that each borrower will read _28_ books per annum. Thus we would have an annual issue of _224,000_. If we assume that the Department is open _307_ days in the year we would have a daily average of _730_. The Library would be open _11_ to _12_ hours daily giving us an hourly average of from _60_ to _66_. Experience has proved that more borrowers are present at one time in the evenings and if we allow _40_% extra to the hourly average attendance we get the number present of from _84_ to _92_. By allowing _25_ square feet for each reader, the total floor space required would be from _2,100_ to _2,300_ square feet; or, an area _55_ feet by _40_ feet would admirably meet these requirements. REFERENCE LIBRARY. ¼% (_250_) of the population will use the Reference Department daily. Using the above factors we would have an hourly average attendance of _20_, and allowing for crowded periods and _25_ square feet for each reader we would require an area of _700_ square feet; or, a room _28_ feet by _25_ feet. READING ROOM. _1_¼% (_1,250_) of the population will make use of the Reading Room daily. Using the given factors we would have to provide accommodation for _144_ readers present at one time. Allow _18_ square feet for each reader, and we require an area of _2,592_ square feet; or a room about _60_ feet by _44_ feet. JUVENILE DEPARTMENT. About _500_ square feet will be ample accommodation for this Department in a town of this size. LECTURE ROOMS. Attendances vary so much here that it is impossible to secure reliable figures. For a popular lecture room in a town of _100,000_ inhabitants upwards of _400_ would have to be accommodated, and allowing _7_ square feet for each person including platform, gangway, etc., we would require an area of _2,800_ square feet; or, a room _40_ feet by _70_ feet. FURNITURE AND FITTINGS. The greater part of the fittings and furniture of public libraries are made of wood. Oak is the kind most used, but walnut and mahogany are very satisfactory for book-cases, tables and card cabinets. BOOK CASES.