... of it as the " aerial disinfectant" par excellence (90). If this substance can be washed out by water, and if its volatility is one of itsgreat merits, and occasionally a defect, for sanitary purposes, can it at the same timebe considered as a durableagentamongstthe oils injected intorailwaysleepers? Especially can...

...G R REDGRAVE © Thomas Telford and ICE 1876 SEWAGE INTERCEPTING SYSTEMS DRY PROCESS DISPOSAL SANITATION MIDDENS PRIVIES TOILETS CLOSETS BOXES EXCRETA PAILS COLLECTION DISINFECTION TOWNS URBAN COSTS MANURE REMOVAL EFFLUENT GROUND SLUDGE USE UTILISATION ROCHDALE...