Show dock books and their care rooks books on shelves may bo be seriously injured if picked packed too tightly when quickly pulled out for use the t top of tho the back Is likely to come off moreover the constant con stunt pressure it if too great creat will loosen the whole bade back in time and the fration in putting upon and taking torn the kie mars the covers on tile the other hand a reasonable amount of lateral pre pres la Is necessary it if neared on the mio shel shelve too loosely the draves tend to open and admit dust dampness wid mid con consequent mildew in tho the cao ca o of heavy beavy volumes the weight of the leaves will I 1 be found resting on tio shelves I 1 the books are placed too loosely Is likely to mak make th the e b backs n c it 8 can conca badly painted shelves are anotn aenoi source of injury to books should b be taken whan point or nish Is used that the surface Is fector factly smooth hard bard and dry when books aro are put in place and th that at t tt surface will remain so eo during v variation rin of temperature or humidity tho the douso beautiful |