( 99 ) 

 analagous to that of Salmon's, and also in pre- 

 venting the putrefaction of the urines, by ad- 

 ding a solution of chloride of lime or very di- 

 lute sulphuric acid. The faecal matters thus 

 disinfected were then treated and rendered 

 into proper manure. 



We must yet mention the process of Hu- 

 guin and Co. Their system is to separate 

 the solid from the liquid portion by suitable 

 apparatus and to disinfect the first and secure 

 the latter against putrefaction. The separa- 

 ting apparatus consists of two cylinders, the 

 diameters of which differ an inch or two. 

 One is placed in the other ; the interior cy- 

 linder being cullendered at the bottom and 

 throughout its circumference, retains the solid 

 matters, whilst the liquid portion drains 

 through the holes into the space between the 

 cylinders, and collects at the bottom of the 

 exterior vessel, whence itis conducted through 

 a galvanized iron conduit, into a reservoir. 



The pipe through which the excrements 

 enter, is fitted to the inner cylinder by 

 means of a coupling screw, and is removed 

 when the apparatus is about to be emptied. 

 The reservoir which receives the faecal juices 

 is of oak wood, lead lined, or if more conve- 



