[Illustration: FIG. 21.--Lending Library on First Floor adjoining Reference Library (Section 122).] =127. Opening Ceremony, etc.=--There are certain ceremonial matters connected with the laying of foundation-stones, unveiling of memorial stones or brasses and opening ceremonies, which each locality must arrange to suit its own needs. An opening ceremony of a public character is always so useful in making known a library that it ought when possible to be arranged. It need not be a very expensive function, and if an eminent public personage, local or otherwise, can be secured to perform the ceremony, so much the better. It is a doubtful point whether the expense of an opening ceremony can be defrayed from the library rate. In districts where the expenditure is audited by a Government auditor, a moderate sum may be passed, with the caution not to incur such charge again, but it is dangerous to assume that this expenditure will always be allowed. Such expenditure, if incurred, would not of course include any extravagant items such as banquets, receptions, etc., but be confined to printing and other expenses. [Illustration: FIG. 22.--Lending Library with Open Access for Non-fiction (Section 123).] =128.= The lighting, heating and ventilation of library buildings are all matters which primarily concern the architect; and they are seldom solved in a completely satisfactory manner. Lighting is the one that most directly interests the librarian, as much of the effectiveness of libraries depends upon it. A valuable discussion upon the question took place in 1911 at joint-meetings of the Illuminating Engineering Society and the Library Association, at which both librarians and lighting engineers expressed their views and experience. The matter is one for expert advice, but librarians should be clear as to the problems to be solved in artificial lighting; these are: To light reading room tables, so as to avoid glare in the eyes of readers. To prevent the casting of strong shadows, single or multiple. To avoid fixing furniture or fittings in permanent positions. To ensure the illumination of the room generally, as well as the tables. To light the vertical spaces presented by two cases of books standing face to face, with a narrow gangway between, so that the book-titles on all the shelves can be read easily.