the slightest agitation of the water, and adhere closely to paper 
and glass in drying.” ‘To this I have only to add that the 
figure here given has been drawn from the original specimen, 
and that no one has since met with a similar one in this country. 
Kiitzing, however, states that he has received it from the north 
of Germany. ‘The filaments differ from each other very extra- 
ordinarily in diameter, so that one might suppose there were 
half a dozen different species under the microscope together. 
The specific character least variable seems to be the extreme 
lubricity and softness. 
Fig. 1. Tuft of CoNFERVA COLLABENS:—the natural size. 2. Filaments of 
various diameters :—all highly (and equally) magnified. 
