48 



2. Over one-half measured mile, on rolling ground, good road. 



Fo. 1 odometer on near wheel. 



First reading 4, 976 



Second reading. . 5, 177 



Difference = 201 = number of revolutions. 

 Average, 401 revolutions. 



Near wheel, 13' 2".208 in circumference; 400.48 revolutions per mile. 

 Off wheel, 13' 2".063 in circumference ; 400.85 revolutions per mile. 



CAMP RUBY. 



Wheels one day's travel since greased, over one measured mile, on good, hard, level road. 



No. 1 odometer on near wheel. 



First reading 6,392 



Second reading. . 6, 791 



Difference = 399 = number of revolutions. 

 No. 2 odometer on near wheel. 



First reading 6, 536 



Second reading.. 7,931 



No. 2 odometer on off wheel. 

 First reading ... 7, 133 

 Second reading. 7,533 



Difference = 400 = number of revolutions. 

 No. 1 odometer on off wheel. 

 First reading... 6,793 

 Second reading. 7,192 



Difference=395 = number of revolutions 



Average, 398.25. 



Wheels eased of friction from wooden axle ; freshly greased 



Difference = 399 = number of revolutions. 



1. Oue measured mile through sage-brush. 



No. 2 odometer on near wheel. 

 First reading .... 8, 140 

 Second reading. . 8, 542 



No. 1 odometer on off wheel. 

 First reading. . . 7, 362 

 Second reading. 7, 763 



DiSereuce = 402=number of revolutions. Difference = 401 



Average, 401.5 revolutions. 



2. One measured mile, good, hard, level road. 



: number of revolutions. 



No. 2 odometer on near wheel. 



First reading 7, 766 



Second reading. . 8, 166 



Difference = 400=number of revolutions. 



No. 1 odometer on oft" wheel. 

 First reading. . . 8, 546 

 Second reading. 8,947 



Difference=401= number of revolutions. 



Average, 400.5 revolutions. 



CAMP TWELVE, NEAR HAMILTON. 



From Camp Twelve to stake on hill above Hamilton City. Measured distance, 199.87 chains. 

 Wheels not greased for three days. 



Eoad rough, uneven, some parts stony, others sandy ; steep grades. 



1st. On up-hill grade : 

 No. 1 odometer : Number of revolutions = 994 = 398.32 revolutions per mile. 

 No. 2 odometer : Number of revolutions = 996 = 399.12 revolutions per mile. 



2d. From stake on hill down to camp : 

 No. 1 odometer: Number of revolutions = 998 = 399.92 revolutions per mile. 

 No. 2 odometer : Number of revolutions = 996 = 399.12 revolutions per mile. 

 The same as above, with freshly -greased wheels. 



