REFERENCES 



1 . "Radio Aids to Maritime Navigation and Hydrography, " Ch. V, Supple- 

 mentary Paper No. 1, published by International Hydrographic Bureau, 

 Monaco . 



2. "Hydrodist Model MRB2" Publication C-3, of Tellurometer Inc., 4435 Wis- 

 consin Avenue, N.W., Washington, D. C. 



3. Comm. J. K. Mallory, "Hydrodist, " Supplement to International Hydro- 

 graphic Review, Vol. 1, October 1960, pp. 57-62. 



4. P. O. Fagerholm and A . Thunberg, "Some Accuracy Tests with Hydrodist 

 and Hi-Fix for Position Determination in Hydrographic Survey, " Supplement 

 to International Hydrographic Review, Vol. 2, October 1961, pp. 9-27. 



5. Private correspondence with Claire A. P. Duffle, Executive Vice President, 

 Tellurometer, Inc., Washington, D. C. 



6. HughB. Loving, "Airborne Control System," Topographic Division, U. S. 

 Geological Survey, August 13, 1962. (Report on Hydrodist Application in 

 Airborne Control Survey Application.) 



155 



arthiir ZD.ILittlcJnr. 



