Transaclions Society Naval Archilccis and Marine Engineers, Vol. 20, igi2. 



To illustrate paper on " The S perry Gyro- Compass in Service," 

 by R. E. Gillnior, Esq., Associate. 



Plate 10 J 



Fig. 5. — Master Compass, Top View. 



Fig. 6. — Master. Compass, Top View, Correction Device. 



