Electricity, as a chemical agent, may be considered not only as directly producing an infinite variety of changes, but likewise as influencing almost all which take place. There are not two substances on the globe that are not in different electrical relations to each other; and chemical attraction itself seems to be a peculiar form of exhibition of electrical attraction; and where ever the atmosphere, or water, or any part of the [nest line missing due to fold_ different kind from the contiguous surfaces, the tendency of this electricity is to produce new arrangements of the parts of those surfaces; thus, a positively electrified cloud, acting even at a great distance on a moistened stone, tends to attract its oxygenous or acidiform, or acid ingredients; and a negatively electrified cloud has the same effect upon its earthly alkaline, or metallic matter; whilst the silent operation of electricity is more important in the economy of nature than its grand operations in lightening and thunder.
 
- Davy.