Fluorene in the Dark.-A saturated solution of iodine in carbon tetrachloride was found to contain 0.29 g. in 10 cc. Dilutions of this, 1 to 10, and 1 to 100 were made. Fluorene, 0.01 mole, was added to 10 cc. of the carbon tetrachloride solution and then 10 cc. of a 1 molar solution of bromine in the same solvent was added quickly. The reaction was stopped by the addition of potassium iodide solution as usual. The results are in Table I,
