234 BOTANICAL GAZETTE [MARCH 
At the meeting for March 1, Mr. William H. Rush presented a 
demonstration of the formation of carbon dioxide and alcohol as a result of 
the intramolecular respiration of seeds and other vegetable structures in an 
atmosphere containing no free oxygen. The theory of the dissolution and 
reconstruction of the living nitrogenous molecules was explained in con- 
nection with the experiments, and the different behavior of these molecules 
when supplied with or deprived of free oxygen, was indicated. 
Mr. H. von Schrenk briefly described certain cedematous enlargements 
which he had observed at the beginning of the present winter near the root 
tips of specimens of Sa/ix nigra growing along the edge of a body of water. 
The speaker compared these with the cedemata of tomato leaves and apple 
twigs, which were studied some years since at Cornell University. 
