108 ELEMENTARY BOTANY. 



inches. On these the specimens are to be fastened \Tith glue ; a good qual- 

 ity of liquid glue should be used. Thick ends of twigs, etc., should be fur- 

 ther anchored with very narrow, short slips of gummed paper or white court 

 plaster. A label written in ink, giving the scientific name of the plant, the 

 date, locality and name of the collector, should be fastened to the lower 

 right-hand corner of the species-sheet. All the sheets holding species of 

 one and the same genus should be put in a folded genus-cover made of heavy 

 manila paper. Outside on the lower left-hand corner of this — which would 

 be opposite to the free edges — the name' of the genus is to be written. The 

 arrangement of the genera in proper sequence completes the herbarium. 



