180 
Trials  of  Agricultural  Motors. 
Mr.  Vincent,  his  steward,  very  great  assistance  was  given  in  the 
arrangements  made  for  the  field  operations,  for  the  storage  of 
the  tractors  and  wagons,  and  for  the  various  kinds  of  work  that 
had  to  be  provided  for  in  connection  with  the  trial. 
The  plans  herewith  (Figs.  1 and  8)  show  the  site  of  the  nine 
five-acre  plots,  506  yards  long,  which  were  laid  out  for  ploughing. 
Seven  of  these  were  ploughed  by  the  tractors,  the  names  of 
which  are  on  the  plan  (Fig.  1),  the  ploughs  used  being  the 
Howard  three-furrow  ploughs.  Here  it  should  be  mentioned 
that  the  trials  of  the  motors,  tested  by  hauling  ploughs,  was 
a trial  of  the  tractors  and  not  a plough  trial.  The  character  of 
the  ploughing  was  observed  as  to  depth,  width,  and  equality  of 
the  ploughing  as  affected  by  the  ploughman,  by  the  speed,  by  the 
regularity  of  haulage,  and  the  trial  was  in  no  sense  a ploughing 
match  trial,  but  only  intended  as  a means  of  comparing  the 
relative  performance  of  the  different  tractors. 
The  land  ploughed  was  seed  land  mown  and  eaten  off  by 
sheep. 
F*tfioo  «o  o .ao  *09  <*>0  300  ><>«  too  7oo  »oo_  9oo_  noO  Peer 
Fig.  1. — Plan  of  Ploughing  Plots. 
