Green Fire.
Obtain some boracic acid, mix it well with a small quantity of spirits of wine, or alcohol, place the alcohol in a saucer upon a dish, and then ignite it with a match. The flame will be a beautiful green. To see the color to perfection, of course, the room should be somewhat darkened.
A green flame may also be produced by using chloride of copper instead of boracic acid. And instead of mixing it with the alcohol, a small quantity may be imbedded in the wick of a candle.