OF THE OSCILLATORS. 81 



consequence, so that they form compact webs or films, and 

 can be gathered up in closely combined masses. They are 

 found upon damp earth, wet rocks, palings, and tree stems. 

 Their treatment is of the simplest kind. The collector 

 has only to peel the film off the earth or stone, and lay it 

 between the leaves of an old book in order that it may not 

 get wrinkled or bent. If too dry, the specimens had better 

 be moistened before being laid in the book, to prevent their 

 breaking. On reaching home, they may be pressed between 

 sheets of blotting paper, and when quite dry, and without 

 any tendency to curl up, may be laid on a sheet of paper 

 with the Lower side gummed down, and so put away in 

 the herbarium. 



