Trials  of  Agricultural  Motors. 
181 
In  response  to  the  invitation  of  the  Society  eleven  entries  were 
made  by  six  entrants,  and  of  these  eleven  entries,  seven  were 
presented  and  went  through  the  trials.  The  seven  so  present 
were  as  follows: — 
(1)  J.  and  H.  McLaren,  Midland  Engine  Works,  Leeds.  A 
steam  tractor  of  the  agricultural  locomotive  type,  but  with 
compound  engine  and  super-heater  for  working  with  dry  steam, 
and  with  road  wheels  fitted  with  detachable  rings  for  working 
on  soft  ground. 
The  general  construction  as  to  type  of  this  tractor  may  be 
gathered  from  the  annexed  illustration  (Fig.  2). 
Fig.  2. — J.  & H.  McLaren’s  5-ton  Compound  Steam  Agri- 
cultural Motor,  mounted  on  springs  to  back  and  front 
wheels.  Winding  drum  and  superheater  for  steam  in 
smoke  box.  Three  speeds. 
The  following  are  the  leading  particulars  of  the  engines: — 
Net  weight,  4 tons  19  cwt.  3 qrs. 
Engine  cylinders — high  pressure,  in.  diam.  by  8£  in.  stroke ; 
low  pressure,  in.  diam.  by  in.  stroke. 
