CONIFEEJE 51
to obtain it pure by fractional distillation ; but by continued redistillations
10 per cent, of the oil was obtained, boiling between 165° to 166° C.,
which gave the results recorded above.
The presence of the small amount of dacrydene still remaining with
the pinene fraction, raised the melting-point of the nitrosochloride pre-
9.—" Huon Pine." Dacrydium Franklini, Hook of Tasmania.pared from that substance several degrees, and no melting-point less than
110° C. was obtained.
Dacrydene forms a liquid bromide, and no crystalline product was
formed when the oil was saturated with dry hydrochloric acid. Scarcely
any colour was produced when concentrated sulphuric acid was added
to a solution of the terpene in acetic anhydride, but when treated with