The process of embedding gold and silver leaf between two layers of glass originated as early as the 1st century, probably in Alexandria.
Dr John Bevis of London suggested, in 1746, the use of sheet lead coatings within and without the jar, and subsequently the use of tin foil or silver leaf made closely adherent to the glass.
In other cases, Leyden jars or condensers take the form of sheets of mica or micanite or ebonite partly coated with tin foil or silver leaf on both sides; or a pile of sheets of alternate tin foil and mica may be built up, the tin foil sheets having lugs projecting out first on one side and then on the other.
in greenhouses where the suns rays are concentrated on particular spotsand a certain class of obscure diseases, such as silver-leaf in plums, foxy leaves in various plants, may also be placed here.
Sample 1 shows the remains of silver leaf over a preparatory layer of reddish clay.