The effect was very great; the glow of light within was fuller and more intense than I could have imagined, where an electric light similarly placed had little, if any, effect.

I should have tried others of the seven lamps, but that my supply of oil ran out.

This, however, is on the road to rectification.

I have sent for more cedar oil, and expect to have before long an ample supply.

Whatever may happen from other causes, our experiment shall not, at all events, fail from this.