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1899] CURRENT LITERATURE 77 
We cannot help wishing that the author had given complete drawings of 
some of the more striking ovules, such, for example, as Dah/ia gracilis, with 
the cell contents accurately shown. When a point is proven “by the appear- 
ance of the protoplasm, and the distribution of starch and other foods in the 
ovule,” one quite naturally expects in the drawings definite delineation. In 
this, however, the six plates are sadly lacking. 
he author has touched an important and suggestive field. Results from 
a comparative study of other groups ought to be easily accumulated from the 
many permanent preparations of ovules and embryo sacs in the possession of 
various botanists, which eet repay reexamination from this new point of 
view.— W. D, MERR 
