What is the other useful item (and incredibly unlikely one, considering the condition of the books!) that the Time Traveller takes from the palace of green porcelain? He considers it to be an especially effective weapon against Morlocks.

The TT passes through a ruined library, then goes upstairs to a well-preserved gallery of chemistry. He finds a box of matches and a jar of camphor, a flammable substance which he decides to use as a candle. He does not find anything with which to break open the pedestal. He finds other weapons, but none as good as his broken lever. He also locates idols from several countries, and some dynamite which no longer works. He decides to camp out with a fire for protection, and feels hopeful that he will be able to pry open the pedestal with his lever.