H.C. De S. Abbott: Trans. Amer. Philos. Soc., 1886.

[41]

For further facts confirming this theory, see "Comparative Chemistry of Higher and Lower Plants." By H.C. De S. Abbott. Amer. Naturalist, August, 1887.

[42]

Different genera and species of the following: Ranunculaceæ, Berberidaceæ, Carophyllaceæ, Polygalaceæ, Bromeliaceæ, Liliaceæ, Smilaceæ, Yuccas, Amaryllideæ, Leguminosæ, Primulaceæ, Rosaceæ, Sapindaceæ, Sapotaceæ

[43]

Kobert: Chem Ztg.

[44]

Compt. Rend., xciv, p. 1124.

[45]