Painting in distemper will admit, in many cases, a kind of glue inferior to those of the first two qualities [see separate entries]. All objects comprehended in the distemper applied to ceilings, walls, &c., do not require much nicety in the choice of the matters proper for furnishing the glue. Under these circumstances solidity is more attended to than neatness. Common Flanders glue dissolved in water is very often used instead of that of a finer quality. ...Glue of this kind must be employed immediately; because it will not keep more than five or six days in summer, even in a cool place. If the weather is tempestuous, it will soon corrupt: when it loses its consistence and dissolves into water it has reached the first term of alteration, and soon passes to the state of putrefaction. When this change in the consistence of glue is observed it can no longer be used in distemper. ,