THE PROSPECT AND KENNY HILL SCHEMES. 271 
ria. They could be cultivated through twenty or thirty genera- 
tions, and then when given to the ox or pig would invariably give rise 
to the characteristic disease. We have no reason even to im 
that any body capable of causing disease by such means could be 
anything but a body having the nature of bacterium. Now, 
teria are just as much plants as mushrooms, cabbages, &c., so that 
we know under what condition they flourish and what they will 
do. Bacteria can be sown in Pasteur’s solution just as easily as 
mustard and cress can be sown in the soil ; in it they thrive, and 
the liquid becomes milky, and there is no knownmethod by which, 
if one drop of Pasteur’s solution was placed in a gallon of water 
its constituents could be estimated. Every cubic inch of such 
water would contain 50 or 100,000 bacteria, and one drop of it 
would be capable of exciting a putrefactive fermentation in any 
substance capable of undergoing that fermentation. For purposes 
of public health the human body may be considered as such a sub- 
ce, and we may conceive such water as pure as may be as re- 
gards chemical analysis, and yet as deadly as prussic acid as 
b d 7 
very advisable to shorten the line of open canal as much as 
possible, in order to preserve the purity of the water, especially 
with the terrible example of the effects of a few germs on the 
population of Lausanne, in Switzerland. The typhoid : fever 
which devastated that town, infecting a quarter of its inhabitants, 
oxydising influences of sun and to filtration through sand, and yet 
produced such deadly results. The shortening of the canal line 
lushing the sewers and in rapidly disposing of any accumula 
imjurious matter in the side drains of the streets. 
Live TREATMENT. : 
unfavourable comparison of the bright sparkling 
: that some Vince of bone disease are due to want or deficiency of 
lime in water, these two facts should i ecessi 
of applying a lime process to any scheme 
on for 
determined Sydney, 
ress on us the n 
of supply which may be 
