Show i coo cooks ks and their cari care nooks hooks on oil shelves may bo be seriously injured tf ft parked too tightly quickly pulled out ont for use the top or of alio it back k la Is likely el y to come wt off moreover tho constant pressure tf it too great will loosen the whole back in time and tho the friction in fit putting upon ani taking from tile elicit mars tha covers on the other hand id a reasonable amount of pressure to Is it placed on tho too boosel loosely y tho leaves tend to open and admit dust dami dampness mois and ronse quent mildew in tile the cag ruse 0 of heavy volumes the weight or of tile leaves ivill tie be found founis on oil jhb shelves it if the iho books are placed p too loosely this la Is likely to make the backs concave badly painted shelves aro are another source of injury to books care should bo taken when paint or var Is used that the sur surface fitce la 1 perfectly smooth th hard and fry dry wl when on tho books are put in ill place arld tant thoa surface will remain so no during valla lla lion ot or afie house 1 |