HOW TO MOUNT SPECIMENS 49 



one hundred slides. For general use, slide boxes (Fig. 52) hold- 

 ing one hundred slides will be found most useful. Some workers 

 prefer trays (Fig. 53), because of the saving of time in selecting 

 specimens. Trays hold twenty slides arranged in two rows. 

 The cover of the tray is divided into two sections so that, if 



FIG. 54. Slide Cabinet 



desired, only one row of slides is uncovered at a time. Slide 

 cabinets (Fig. 54) are particularly desirable for storing large 

 individual collections, particularly when the slides are used 

 frequently for reference. Large selections of slides should be 

 numbered and card indexed in order to facilitate finding. 



