APPENDIX 
DERIVIATION OF THE "mbd" FORMULAE 
As mentioned before, the "mbd" formulae have been derived for the 
following specific system: 
1. Relative orientation: According to Bachmann. 
2. Aerotriangulation: Instrumental conjunction of successive photo 
graphs (Folgebildanschluss) as an Aeropolygon. 
3* Control and Adjustment: Cross-Bases Method. 
A brief resume of the Bachmann Method of Relative Orientation 
and the Cross Bases Method will follow. For complete details, the 
reader is referred to the cited literature.