126 PROCEEDINGS OF THE SCIENTIFIC ASSOCIATION. 
opinion, but it seems possible that a solution has now been 
found of the difficult problem of utilizing sewage matter.’’ 
“It is probable that the Carbolic acid will supersede all 
other deodorizers for this purpose. It has been tried with 
success at Glasgow and Exeter .... It was mixed with a 
small quantity of lime, and so effectually retarded decom- 
position of sewage, as not only to do away with smell, but 
to considerably increase the value of sewage as a manure, 
by completely retaining all the Nitrogen.” 
Is it really more economical, is it better to dispose of the 
night-soil and refuse water by carrying them to the sea 
where they become lost ; or is it better to adopt the deodo- 
rizing process, and thus preserve for agricultural purposes 
a valuable fertilizer ? Human excreta are considered as a 
very rich manure ; and, of late, practical as well as scien- 
tific men have turned their attention to their preservation. 
Doubtless the deodorizing process has rendered this more 
easy. And since, in my opinion, we are not in a position 
to pay for underground sewers, let us try the deodorizing 
process ; it has apparently answered well where it has been 
tried. The time must come when rural economy will b© 
better understood; then we shall begin to appreciate and 
utilize the refuse of towns. Whilst on this subject I would 
suggest -that no broken bottles or other dangerous materials 
be allowed to be mixed with the sweepings of yards and 
streets. So long as the agriculturist is obliged to make a 
separation of both to prevent accidents to men and stock, he 
will not utilize those sweepings. 
Ordinance No. 10 of 1840 for regulating buildings in the 
town of Port-of-Spain should be repealed and a new one 
passed. The Ordinance of 1840 was, I fear, rather harsh 
in some of its clauses, especially the 4th clause which for- 
