Show books and their care books on shelves may be seriously injured it if packed too tightly when quickly pulled out oat for or use nea the top of the back la Is likely to come coma off moreover the constant pressure it if too great creat will loosen the whole back in time and tho tha friction in putting upon and taking from the shell shelf mars the covers on the other hand a reas reasonable anable amount of lateral pressure Is necessary if placed on the shelves too loosely the leaves tend to open and admit dust dampness damp neos and consequent mildew in the caso or of heavy volumes the weight of the leaves will be found resting on the shelves if 1 the books are placed too loosely this la Is likely to make the hacks backs concave badly painted shelves are another source ot of injury to books caro care should be taken when or varnish la Is used that the surface Is perfectly smooth hard find and dry when the books are put in place and that the surface will remain so during variation nt nf temperature or humidity the house beautiful |