24 Schively—Recent Observations on 
appearance because of great increase in seed growth—in other 
words, into subterranean pods. There was certainly great 
similarity between those artificially produced and the ones 
normally resulting. Specimens of aerial legumes in different 
stages of development were selected for experiment, as fol- 
lows: (a) with the ovary just emerging from the calyx, (0) 
the well-formed but young legume, and (c) older specimens 
still quite flattened. Satisfactory results were obtained from 
burying in the soil for a period of from four to six weeks. 
Considering the success of the preceding work, it was 
regarded as possible to obtain a subterranean legume from a 
purple flower. Accordingly, experiments to verify this sup- 
position were begun in August, 1897. Tiny racemes just show- 
ing faint indications of purple color were buried. Racemes 
situated high on the plant were purposely selected. In about 
six weeks, fair-sized legumes were obtained—perfect counter- 
parts of those which had been normally produced. Strange to 
say, too, all were one-seeded. In no case did more than one 
legume result from a raceme; in some cases none. But in 
this connection, it must be also remembered, how few legumes 
often mature from a heavily laden raceme of purple flowers. 
The problem now was to ascertain how this treatment had 
affected the histological peculiarities of the legumes and also 
the seeds. Specimens resulting from all these experiments 
were carefully examined and the details in several cases will 
be given. For reasons which will be made evident in a later 
part of this paper, the facts gleaned from these will surely 
serve as strong bases for argument. The series to be ex- 
plained consisted of legumes resulting from burying purple 
flowers and from two different stages of legume yielded by the 
green aerial flowers. They may be referred to as follows: 
(a) Legume resulting from burying purple flower. (b) Legume 
resulting from burying flat but well-formed legume developed 
from green aerial flower. (c) Legume resulting from burying a 
more mature leguine than (b) from green aerial flower. 
