OF THE OSCILLATOR!^. 
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 bad 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. 
a 
