4 
s 
Botany and Zoology. 241 
so to speak, parted with less freely. In monocotyledons, where 
the supply of water is fairly ize these special precautions 
for economizing the water suppl apparentl not taken 
Of nectaries the author takes dubatantiutly the view of Sachs, 
namely, that their activity is dependent upon the activity of the 
nectar-cells themselves, and is independent of root-pressure. 
views conflict with those of Wilson, who attributes the activity 
to osmosis. Wilson based his conclusions upon the passage of 
abrane of 
rawn. But Wilson, at any rate, does not explain the exudation 
contains only one per cent of sugar. He quotes from Sachs the - 
statement, that the aaeeiial cells “absorb water Seger ns 
substances i in solutio ion) with great force on one side and xude it 
Re espiration and Transpiration of Fungi.—The following 
i a i have been reached by Bonnier and Manern (Annales 
des Sc. Nat., Mar. 1884), after a series of carefully conducted 
experiments with apparatus of novel construction. 1. Respiration 
m. 
ool atures. As regards age 5 the following results are 
the ate oe light, but increased moisture in the air Sere 
eastern coast of America, and the Straits of Fuca on the western ; 
, the Pararctalian, or north temperate realm, including” the 
° 8° 
various coast regions between the isocrymes of 44° and 68° F.; 
