14 
wife’s sister, se Staples, semi-annually for and during the 
term of her natural life, and upon her death to as over the said 
principal sum to the New York Botanical Gard 
Section 5. All the balance of the said rest, ae and re- 
mainder of my estate which shall remain after the payment of the 
foregoing devises, legacies and bequests in this cae article of 
my will specified, I give, devise and bequeath as fo 
bene ne thereof to the New York ens ae as ae 
orial of my wife’s late grandfather, David Lydig, the 
agers thereof may deem for the best interests of the Botanical 
rden 
NEWS, NOTES AND COMMENTS. 
The Torrey Botanical Club has appointed a a committee to pre- 
Association for the Advancement of Science at its meeting in 
ew York, in the last week of June, 1900. 
The agencies vis most sae ae a the proper devel- 
opment of trees in | ity, gas and steam. The 
death of many specimens can be referred es inairadee gas. If 
a leak occurs into a pipe, the gas hae very readily into ae 
soil especially if it is porous, and when it comes into contact with 
the roots they are asphyxiated, the result bate gnickly manifest 
in the appearance of the tree. The symptoms of gas poisoning 
are most generally a sudden falling of the leaves, a deadened 
pearance of the bark due to the collapse of the cambium or liv- 
ing layer. In mild instances of poisoning the effect shows only 
death. Many trees on the grounds of city residences are killed 
by gas to the snes of the owner, since this may occur ve 
specimens fifty or even a hundred feet away from the nearest g 
main.—Adapre d from the eleventh annual report of the Botantst ae 
the Hatch Experiment Station. 
