54 OUTLINE OF STRUCTURAL BOTANY 
Placing the press in the open air in the sunlight will hasten the 
drying, or at the seaside or in damp weather the press may be 
placed near a stove. When the specimen is dried it is ready for 
the herbarium. The mounting papers should if possible be of the 
standard size, 104 x 164 inches. If it is inconvenient to have such | 
papers the specimens may be kept in folders of fragments of news- 
papers or sheets of thin wrapping paper or they may be transferred 
temporarily to sheets of paper of any size by using fasteners which 
will permit of the final removal of the specimen to standard size 
paper, care being always taken that the record follows it. 
When a considerable number of specimens have been properly 
dried and mounted they should be placed in folders of manilla 
paper, each folder to receive the plants of a genus, the name of 
the genus to appear on the lower left hand corner. Should a genus 
contain many species and these perhaps some varieties, thinner 
folders may be used within the genus holders to separate the 
species, especially when it is desirable to preserve several speci- 
mens of the same species to illustrate the growth of the plant under 
different circumstances of soil or climate. It is a mistake to 
mount the specimens in a book. 
Finally, should the collection become large the genus folders 
should be arranged in a cabinet according to their families. 
It is better to keep specimens gathered in widely different locali- 
ties, for example, those collected in the Northern States and those 
from the Southern States in separate collections unless the collec- 
tion has become so important that it fully represents this broad 
extent of country. 
