...It is a parchment-like substance,strengthened by the adhesion of dirt particles, and doesnot appear to exercise any vital functions, but to bemerely a covering for protection... 
Henry J. Slack 「Marvels of Pond-life」
...The adheringmatter, in such cases,should be entirely removed, and the part rubbedwith a little dry clay, to prevent subsequent adhesion...
Robert Jennings 「Sheep, Swine, and Poultry」
...The formation of fibrous tissue may extend to the pleura, orlung covering, and cause firm adhesion of the lungs to the chest walland to the pericardium, or heart case...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...In very much the same fashion, but with less adhesion among the different cells, do the Leaf-cutters act when stacking their jars in a column without any external division into storeys...
J. Henri Fabre 「Bramble-bees and Others」
...The adhesion ofmembers of a pair may have survival value...
Henry S. Fitch 「Field Study of Kansas Ant-Eating Frog」
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