Across
- 4. principle in adjustment of dumpy level
- 5. deals with measurements in vertical plane
- 8. difference between upper and lower stadia reading
- 9. modified form of stadia levelling
Down
- 1. a point on which both minus sight and plus sight are taken
- 2. a relatively fixed point of known elevation above the datum
- 3. line of sight is also called as line of
- 6. process of determining contours of an area
- 7. surveying lens nearest to the object