annT or
oterivoe;&.lfe


material; for instance, Lake of Geneva, .0439


h

 '/
 i


 'A


 A ? I'
 I'
k -
r/
,;


sir


Cbhambeisy


.0460;


(Angus Smith's tables).


at night


varied


from


only supposed that


the Black


died


,Hole


deficiency


various parts of London,


air in


.101


different


.320.


out of 300


from


oxygen


CE


thea


prisoners couldf


inhaling carbonic-acid'gas, or i
used by its presence. But 1_


observations, and especially experiments on living animals'
arret and Hammond), indicate that they died as much fro


poisonous effects of organic matter in the air as from the ext


carbonic acid or deprivation of


oxygen.


Ernest


B;a t ^


says


" The captives in the Black Hole in Calcutta did not


ish (or even suffer) for lack


oxygen."


must


then


solids


causes of


disease.


Tyndall


be gases of the atmosphere for'
has lately alluded to the import


fact that equally expert experimenters in treating fluids


ilar methods for the destruction of


these organisms, have


to arrive at the same results


that the air is in one


for which


locality purer


that is,


assigns the re!s"-
less infected with


germs than in others, and that the different fluids experimenWt i
upou were therefore contaminated by them in different degwe~,5k


Pasteur,


says


Tyndall,


found


Glacier


air of the


"Mer


Glace, and equally in the caves under the Observatotiy of PA


free from germs of


putrefaction.


It is


these


germs, and


only, which these scientiate


have demonstrated to b6 the


$pl,


if nofthe only cause, of


ahbetances;


putrefaction and


decay in &rga


and, as we may infer, of the suppuration, gangi


septicw"mia, and


,-tes, and wounds, and


7 ".4jled;


consequently increased


surgical


operations


that is, where patients are more or


reasoning


patient


.vrpen of Glasgow have


mortality of
in oampl and
lee crowded,


experiments of the


almost abolished


by bs


4unroing the vitality of thesegmra. in
jM a viciity of woods and o rtiefl
> t W ui... j- t..^ s tA -'.<.S &


-# 'w,


 ,q ?:.


I f


t i


I


-T <<


... T y "J $


th^ tre