Books by Julius Grigore
Air Mail History of the Canal
Air Mail History of the Canal Zone and Panama, 1918-1941, Vol II
Canal Zone and Panama Aerophil
Canal Zone and Panama Aerophilately and Philately Associated with the First Byrd Antarctic Expedition (BAE I),1928 To 1930
Financial History of the Panam
Financial History of the Panama Railroad Company, 1849-1949
Peary's Conquest of the North
Peary's Conquest of the North Pole and the SS Roosevelt
The Surcouf conspiracy
The Surcouf conspiracy
Presidents of the Panama Railr
Presidents of the Panama Railroad Company, 1849 to 1916
The influence of the United St
The influence of the United States Navy upon the beginnings of the Panama Railroad
Coins and currency of Panama