The empirical formulae of peimine and peiminine are revised to C₂₇H₄₅O₃N and C₂₇H₄₃O₃N respectively.Neither peimine nor peiminine has a methoxyl or ethoxyl group, a methylimino or ethylimino group, or probably a tertiary alcoholic hydroxyl group.Their basic tertiary nitrogen atomis probably present in the bicyclic ring.Peimine or peiminine has no active ethylenic linkage, and the active methylene group adjacent to the carbonyl group of peiminine seems to be absent.Both peimine and peiminine contain at least three carbon-methyl groups and give no sparingly soluble digitonide.