312 
Papers  relative  to  an  Accident 
Space  through  which  the  conductor) 
upon  the  model  pafled  from  its 
beginning  to  move,  to  the  indantf 
nearly  of  its  being  (truck,  - J 
Heighth  of  the  frame  from  the  floor, 
Breadth  of  the  frame, 
Heighth  of  the  two  pods,  on  the  top] 
of  which  were  fixed  two  wheels,  J 
Diameter  of  the  great  wheel, 
Diameter  of  the  fmaller  wheel,  fixed  1 
upon  the  fame  axis,  - j 
Length  of  frame  on  which  the  model  1 
moved,  - J 
Diameter  of  the  pulley  that  was  fixed' 
between  the  two  pods,  which  deli- 
vered the  line  from  the  model  to 
the  greater  wheel,  the  center  of 
which  pulley  was  two  inches  and 
an  half  above  the  center  of  refif- 
tance  in  the  model, 
Greater  weight  to  draw  the  model, 
Smaller  weight,  - 
Weight  of  the  model, 
Feet.  In. 
7 7 
lbs. 
3 
x 
IO 
18 
It 
3 
6 
i ii 
1 1 
32 
4 
I 2 
Upon 
