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complete septation of the cavity of the ovary. That is, the 
seed is divided internally by a false partition which does not 
completely separate the cavity into two parts, and the cotyledons 
are lobed and wrinkled to fit into the irregularities of the inner 
surface of the seed. The English walnut, then, though morpho- 
logically bicarpellary, contains but one ovule; 7. e., it is morpho- 
logically a true nut (one-seeded pericarp resulting from a several 
carpelled gynoecium). 
Now what we would expect to find in a case of reversion would 
be a form in which this division of the ovary was complete, 
forming by this septation a true bicarpellary- ovary, but in this 
specimen we find a reversion to a type in which there are three 
incomplete septa in the ovary, forming a nut which is separable 
into three parts, but which contains but one ovule, with three 
cotyledons. This is probably due to the fact that the reduction 
of the ovary in the Juglandaceae has been carried so far that 
the ovule has become basal and erect, and a complete septation 
of the ovary is prevented by the obstruction of the hypocotyl or 
upright stalk which supports the cotyledons. 
PROCEEDINGS OF THE CLUB 
OCTOBER 8, 1912 
The meeting of October 8, 1912, was held at the American 
Museum of Natural History. Dr. E. B. Southwick called the 
meeting to order at 8:30 P.M. Eight persons were present. 
The minutes of May 29 were approved. 
Mr. Henry O. Severance, librarian of the University of Mis- 
souri, Columbia, Missouri, and Mr. Otto Kunkel, Columbia 
University, New York City, were nominated for membership. 
Mr. Sereno Stetson, chairman of the field committee, and Dr. 
E. B. Southwick reported on the field meetings held during the 
summer. 
The application of Miss Jean Broadhurst for a grant of two 
hundred dollars from the Esther Hermann Fund to assist her 
