This chapter presents records of new alkaloids obtained mostly from plants, such as (1) Acronychia haplophylla, (2) Acutumine, (3) Alangium lamarckii Thw., and (4) Alangium lamarckii. Acutumine was shown to have a chlorine atom in its molecule and the empirical formula was corrected to C19H24O6NCl. The halogen is not present as chloride nor is it removed by reaction with silver oxide, with lithium aluminum hydride, nor by catalytic reduction. Two new alkaloids, marcine and marckidine were present but their empirical formulas were not reported. Functional groups were recognized by infrared spectra and the melting points of some derivatives were reported. © 1970, Academic Press, Inc.