Chutaux's Solution.
A solution for bichromate batteries. It is composed as follows:
Water, 1,500 parts
Potassium bichromate, 100 parts
mercury bisulphate, 100 parts
66° sulphuric acid, 50 parts.
Circle, Galvanic or Voltaic.
A term for the voltaic circuit; obsolete.
Fig. 85. MAGIC CIRCLE.
Circle, Magic.
A form of electro-magnet. It is a thick circle of round iron and is used
in connection with a magnetizing coil, as shown, to illustrate
electro-magnetic attraction.