The scale [scale here means both the insects and their ovisacs—F. C. W.] contains a small amount of wax which can be separated by solution in boiling alcohol, or better, petrol. From solution in the latter it yields, after recrystallization, a considerable proportion of a hard wax melting at 83°·5 and having a density of 0·970 at 15° C. This is in all probability Cerylcerotate. There is present a mixture of waxes of lower and indefinite meltingpoint.