COST OF USING POWER ON WHEAT FARMS IN OREGON 35 
outlay for new parts and skilled labor on the combine in machine 
shops off the farm) are shown in Table 31. Of the 234 records 
on the cost of operating motor-driven combines, labor spent by the 
owner was mentioned 179 times and other hired man labor 138 times. 
In general, the amount of time spent in repairing the combine 
increased with the size. Cash repairs were mentioned 223 times. 
TABLE 31.—Cost of cash repairs and labor maintenance of combines of different. 
sizes, 3-year average, 1920-1922—72 combines, 1920; &2 combines, 1921; 80 
combines, 1922 
Cash repairs Owner’s labor Other labor 
P F Ex- Amount| Ex- Amount| Ex- 
Size of combine Total 
(ength of cutter bar) | reports (Owners| Pe2S¢ |owners| USCd | PeDSe |Owners) USed | Pense 
report-| P& | report-| Per Per | report-| Per ee 
a com- in com- com- in com- com- 
&  |bine per 8 | bine per |bine per} 8 | bine per |bine per 
year year year year year 
Feet: Numober| Number| Dolls. |Number| Days Dolls. |Number| Days Dolls. 
(0) ee en aN 66 66 132 52 of 27 34 8 39 
HD FOT ht Aes Se sae Se 59 54 147 42 7 27. 36 9 43 
16ranGdh 18s 22 - s2 57 55 288 44 10 41 36 12 67 
20; AN G22 Esse swe 43 39 298 34 13 56 27 15 74 
7 in Se ee RES Be 5 EE 9 9 324 7 9 U7? 5 il 63 
IAT SIZeS ieee ae aa 234 223 212 179 9 39 138 11 55: 
INSURANCE, DEPRECIATION, AND INTEREST 
Insurance, depreciation, and interest charges for combines of dif- 
ferent sizes are given in Table 32. Comparatively few owners of 
9, 12, and 14-foot combines had insurance on their machines, but a 
majority of those with combines of the 16-foot and larger sizes had 
their combines insured. 
TABLE 32.—Cost of insurance, depreciation, and interest for combines of dif- 
ferent sizes, 3-year average 1920-—1922—72 combines, 1920; 82 combines, 1921; 
80 combines, 1922 
Average expense per combine 
Owners per year 
Total | reporting 
Size of combine (length of cutter bar) reports Gace 
ance Insur- Depre- 
ance ciation | terest 
Feet: Number | Number | Dollars | Dollars | Dollars 
LE cag NE AE eco IS tee OU 8 RA ey eh Be eee 66 3 45 209 53: 
Jian Gsi4ek eS) So. Se Eh Pie 59 13 85 347 98. 
Gian Gel 8/2 = see Se a ee oS A 57 44 79 517 149) 
ZO an G22 SiR cepa tas eke ee age ns 43 34 78 578 164 
PLS is 8 5 RCN Saks Me eee 3Y 2 hae sit al 9 pill Ceoe nce See 9 8 96 425 162: 
EMNIESIZES eae. toe eRe Se a gth ae eek Sour Naat Ld es 234 102 80 395 112 
_ Depreciation was computed from estimates of owners as to the 
value of combines at the beginning and end of the year. As might 
be expected, it was much higher on large than on small combines. 
It is an average for combines of different ages whether bought new 
or as used machines. In computing this charge no credit was 
allowed for the resale value of old combines. 
