ISO PltOCEEDINGS OP THE SCIENTIFIC ASSOCIATION. 
and cows should be kept in proper sheds, and their dung 
removed daily, or twice a-week, according to the number 
kept together. 
I believe that I have, in the foregoing pages, pointed out 
where is danger to the public health, and I have endea- 
voured, at the same time, to indicate the remedy. Danger 
lies in the law being left inoperative. Remedy should be 
sought in its strict enforcement ; and new enactments should 
be passed, if necessary. I have often heard the following 
remark, and I fully concur in it. I have heard it said that 
our laws are numerous and good enough if they were pro- 
perly executed. Where, however, legislative enactments 
are suffered to remain inoperative, not only the object for 
which they were made is not attained, but the people be- 
come familiarized with the idea that they can break the law 
with impunity, and they get into habits of insubordination. 
Improvidence and laisser-aller are the characteristics of 
our poorer classes ; and any measure calculated to render 
them more provident should be hailed with gratitude. It 
is essential that they should be made aware that the law is 
something living and active, and that infractions must not 
be passed unnoticed. 
Public Hygiene owing its existence to the necessity of 
remedying the many evils which improvidence had created 
in populous districts, it had nothing to do with the arrange- 
ments of ancient cities ; but in our days it should direct, as 
far as possible, how new ones should be laid out in all their 
parts ; provisions ought to be made not only for proper ven- 
tilation, by giving directions with respect to the width and 
delineation of the streets and squares and their drainage ; 
but we should go further, and even interfere with the con- 
struction of private dwellings, not by directing what they 
