MATHEMATICAL MODELS FOR HORIZONTAL GEODETIC NETWORKS E. J. KRAKIWSKY D. B. THOMSON April 1978 TELCEHCNTIUCRAEL N ROETPEOSRT NNOO.. 24187 PREFACE In order to make our extensive series of lecture notes more readily available, we have scanned the old master copies and produced electronic versions in Portable Document Format. The quality of the images varies depending on the quality of the originals. The images have not been converted to searchable text.