ent^putrefac tion. By a considerarle vola- 
tili 2 saticn cf thè nia terial , i ts tissu had 
recome light, soft, frialole, and whitish in 
col or • Chservd at a distane e by night, 
it resembled a very pale fire. I cut off 
some pieces and divided these into small , 
bine fragments» Some of these wer placed 
in a udiometer previously fild with ordi- 
nary air, in crder to observ thè effeot. 
In thè dark all cf thè pieces shone bright- 
ly. The restii t was thè same when thè udi- 
cmeter was fila with water. Substituting 
pure nitrogen causd no charige in thè ef- 
fect in seven minute, but afterward thè 
light diniinisht, 3-nd in 1/2 hour’ thè light 
on thè surface was entirely extinguisht. 
This slow deci ine of thè light I compare 
to thè fi arte cf a light ed candì e placed in 
ari enclosed space, Vi/hich little by little 
grows w'eaker. 
Sec. ICS: ihe fosforus divided in minute 
pieces went out in three hours in this gas 
(nitro?ren) and rerraind dark; afterward thè 
udiometer was raisd frem thè v/ater in which 
it v/as immerst, and so held as to allow 
thè irtgress of common air; after a few min- 
uts had past thè light was restcrd to thè 
fosforus, mor feebly than at first. It 
shone with almost as much power as at first 
when this mixture was pord cut and thè udi- 
ometer fild with air. 
Sec. 1C9: I went tc thè mountain, taking 
with me thè udiometer fild with oxygen and 
tightiy seald; ^ observd that thè light 
was above ali belief very bright in thè u- 
diometer f*iid with this /?:as. 
Sec e IIC: I m.ade a new experiment in thè 
fcllcwing manner: I placed a glowins* frag 
rnent (of thè weed) in x±x udiometer be- 
side cne of Kunkel ’ s fosforus. upon fil- 
