| Rating | Solver | Clue |
|---|---|---|
| NEON | Illuminant | |
| GASOGEN | A volatile hydrocarbon, used as an illuminant, or for charging illuminating gas. | |
| ILLUMINATOR | A condenser or reflector of light in optical apparatus; also, an illuminant. | |
| PHOTOGEN | A light hydrocarbon oil resembling kerosene. It is obtained by distilling coal, paraffin, etc., and is used as a lubricant, illuminant, etc. | |
| NAPHTHA | ... as a solvent for varnishes, as a carburetant, illuminant, etc. ... | |
| MAGNESIUM | ...otechny, or in photography where a strong actinic illuminant is required. Its compounds occur abundantly, as in dolomite, talc, meerschaum, etc.... | |
| PARAFFINE | ...steless and odorless, and obtained from coal tar, wood tar, petroleum, etc., by distillation. It is used as an illuminant and lubricant. It is v... | |