

.85 in 





4.48 in 







t the propagating house precipitation was .85 ii 



nchir 



the loss from the evaporimeter, at the swampy 1 



regior 



able, 4.48 inches ; while in the experiment garde 



n dur- 



me period the evaporating power of the air wa: 



5 2. 7 S 



:xcess of the precipitation recorded. 





should be kept in mind that the loss of water fro 



m the 



Nov 

 evaporimeters is not a measure of the amount of water lost by 

 the soil through evaporation, but is only an index of the evaporat- 

 ing power of the air for the given station. For the same locality 

 the rate of evaporation from soil and from evaporimeter will 

 materially differ, being less from soil and varying with its nature 

 and condition, as well as with the surroundings above the soil- 

 surface. 



The purpose of the above data, therefore, is not to give a 

 measure of the amount of precipitation that remains in the soil, 

 or that becomes available to the plants, but, as already empha- 



different localities. The above record, then, gives numerical 

 expression of the fact that, of the three localities studied, the 

 evaporating power of the air is greatest in the experiment garden, 

 least at the swampy area near the stable, and intermediate on the 



NOTES, NEWS AND COMMENT. 



Mr. George V. Nash, Head Gardener, delivered a lecture on 

 Water Gardens before the Bronx Society of Arts and Sciences 

 December 6. 



Bulletin No. 14, containing an enumeration by Henry H. 

 Rusby of plants collected in Bolivia by Miguel Bang, with de- 

 scriptions of new genera and species, was issued December 7, 

 1907. This number also contains an index to Vol. 4, which it 

 completes. 



A tuber of Ibervillea Sonorac, a member of the gourd family, 



