TRACTORS AND HORSES IN THE WINTER WHEAT BELT. ol 
$8 per head greater in the southern area and $21 per head less in the 
western area, than on the farms where tractors were being used. 
The proportions of mares, geldings, and mules were practically th 
same on the two classes of farms. : 
TaBLE 58.—Total number of work stock, their weight, and value in different areas on 
farms without tractors. 
Mares. Geldings. Mules. | Av- 
erage! ay. 
| Num- num | erage 
Area. ber of Av A Aver- | Aver- Aver- | Aver- Pua value 
farms.| Num- oe Ng ss Num-| ~ ave’ | stock ee 
ber age age | ber. 2 age | ber. pee ag SOCK! head. 
* | weight.) value. weight.) value. weight.| value.| per 
| farm.| 
Pounds Pounds Pounds | 
Si 26 | 124) 1,283] $110 69 | 1,277 $86 63 | 1,137] $130} 9.8} $108 
. (2372 31 210 1, 219 71 124 1, 215 67 44 979 $2) 122-2 71 
Northern... 28 136 1, 334 113 1li 1, 305 104 14 1, 233 148 9.3 111 
Topale. =. - 85 470 1,277 94 304 1, 263 85 121 1, 097 E5025 94 
Table 59 shows the number of colts on these farms. For the 
entire 85 farms there was one colt less than a year of age for each 7.9 
head of work stock and one for each 4.1 mares—a somewhat greater 
proportion in each case than on the farms where tractors were owned. 
There were some horses or mules which had not been broken to har- 
ness on four-fifths of these farms and on only a little over half of 
the tractor farms. 
TaBLE 59.—Number of work stock and number of colts in different areas on farms without 
tractors. 
| ass tees Other colts. Number of farms. 
Nun INSTT ee ee 
Area. ber of aes | With 
arms colts less se 
stock. Horse. | Mule. | Horse. | Mule. than 1 ore WE 
year of aay a 
age. 
SOuLHeIN=-- ==). 2-s52-- 3 26 256 9 19 33 46 14 18 6 
DWESiCEH Ae a a2 ese Sa 31 378 4] 26 7 18 21 | 21 2 
WNorpneric- == 6) 5s 23>... 28 261 17 2 27 5 7 13 10 
cir! ieee es are 85 895 67 47 136 | 69 42 | 52 | 18 
HORSE LABOR. 
Table 60 shows the hours of horse labor used per farm on each 
operation, and Table 61 the hours per head per year, the hours per 
crop acre, and the crop area per horse on these farms where tractors 
were not owned. The hours of horse labor per farm was somewhat 
less than the total power used per farm for drawbar work where 
tractors were owned (see Tables 22 and 25) but the crop area was 
correspondingly less, so that the power used per crop acre was prac- 
tically the same on both classes of farms in each area. On these fe 
more horse labor was used for plowing and listing than for any other 
class of work. (See fig. 16.) 
