HOLME
KON bo
or Tr ty
Jui
NE 640
six inch strip of canvas approximately fifty five meters long which was held
parallel to the line as each measurement was made.
Roe
| Reproduced from the holdings of the National Archives
Pacific Southwest Region
The computed probable error of the total measurement is 1 part in 648,000, .
The allowable maximum probable error is one part in 500,000,