xvi FLOWERING PLANTS OF THE RIVIERA 



The arrangement of the specimens in genus covers, and of the herbarium 

 generally in a cabinet, must depend upon the individual taste of the botanist and 

 upon the size of his collection. But except in very small collections when several 

 genera can be placed together in one cover, with their names and those of the 

 various genera neatly written outside, it is better to place the species of one genus 

 only in a cover. These genus covers should be made of stout brown paper folded 

 to a slightly larger size than the mounting-paper. The name of the genus should 

 be written on the end of the cover so that it can be readily found when packed in 

 the cabinet. As the collection grows it may be necessary to have more than one 

 cover for many of the larger genera. 



Cabinets should be made of well-seasoned wood what is called American 

 white-wood is a very good and inexpensive material. The usual form is a tall, 

 upright cupboard, divided perpendicularly into two equal parts, and with two 

 closely fitting doors opening in the middle (two doors are very much better than 

 one). The shelves should be made very carefully of thin wood which will not 

 warp, and they should slide easily in shallow grooves cut in the framework of the 

 cupboard. They are better supported in this way than on narrow strips of wood 

 nailed to the sides, for such strips interfere with the papers when the shelves are 

 very full. 



It is to be hoped that not only collectors of herbarium specimens and of 

 roots, but all who gather flowers will set a good example by not taking more 

 than they really need. 



