THE HEEBARIUM. 371 



covered only with blotting-paper the half of the specimens 

 would have been spoiled by adhering to it. 



The whole may then be replaced in the press^ and consi- 

 derably stronger pressure applied to them, and under this 

 they may be allowed to remain for a day and a night. In 

 shifting them the second time the mushn coverings may be 

 removed. When permitted to remain till the plants are 

 quite dry there is danger of their leaving chequered im- 

 pressions on the specimens. They m.ay then be replaced in 

 the press, and very strong pressure applied. They should be 

 shifted once a day for a week, and the paper dried ; and at 

 the end of that time they may be deposited in the herbarium, 

 when they will be found adhering so closely to the paper as 

 to have all the appearance of a beautiful painting."^ Where 

 there is not a press, the want is easily supphed. All that is 

 necessary is two boards the size of the blotting-paper, and 

 three weights of stone or cast-iron. The blotting-paper 

 containing the specimens being placed betwixt the boards, 

 one Aveight may be placed above them at first, two at the 



* A learned Professor going abroad asked me to give liini some specimens 

 connected with natural history for the museum of his college. I sent him 

 an album tilled with sea-weeds, and he wrote to me that he was exceedingly 

 obliged to me for the beautifid sketches done by my daughters ! 



