Jan. 28, igiS 



Study of Plow Bottoms 



161 



Table IV. — Values (in inches) for the surface of the share and front part of the moldboard 

 of the plow bottom shown in Plate 6, B, obtained by measuring 



From the remaining surface of the moldboard the following data of 

 Tables V and VI were obtained : 



Table V. — Values {in inches) of rest of surf ace of moldboard shown in Plate 6, B 



x^= 8.67 



yi= 4-95 



21=24.0 

 x^= 9.08 



J'4= 9.0 



24=27.0 



X2= 4.96 



y2= 8.64 

 22=22.0 



3:5=13.62 



^5= 6.23 

 25 = 33-0 



^3=11-73 

 yz= 4-8i 

 23=29.0 



3tg=I2.24 



j'6=ii-89 



26=3 1 -O 



i.o73c^— Loyy^+z^— S-ggyz— 1.53:2-1-16.37x7 



-f6o.55x-f 1 25. ay- 48.52+ 109.5 = (44) 



Table VI. — Values (in inches) for the rest of the Tnoldboard surface shown in Plate 6, B, 



obtained by measurement 



