Labeling and Cataloging Preparations 



289 



Marchantiales, BRYOPHYTES Hepaticae Jungermanniales, and BRYO- 

 PHYTES Hepaticae Anthocerotales. It will readily be seen that the 

 process can be continued almost indefinitely, and that new slides 

 may be at any time dropped into their proper places. A rather 

 complete label gradually built up in this way is shown in Fig. 107: 



BRYOPHYTES 



HEPATICAE 



J n nge rm a n n iales 

 Porella platyphyllum 



Archegonia 



FIG. 107. A label for slide boxes 



The beginner will often find that the mere placing of a slide in the 

 proper box and the box in its proper place on the shelf will refresh or 

 increase his knowledge of classification. While this system is almost 

 ideal for the careful worker, especially if he has some knowledge of 

 classification, it is the worst possible method for a careless student, 

 since a slide in the wrong box is almost hopelessly lost if the collec- 

 tion is large enough to need thorough classifying. 



