TO 



SIR JOHN FRANKLIN, Captain R. N., F. R. S. &c. &c. 



AND TO 



JOHN RICHARDSON, M. D., F. R. & L. S. &c. &c. 



UNDER WHOSE AUSPICES, 



AS COMMANDER AND NATURALIST OF TWO SEPARATE EXPEDITIONS 



TO 



THE POLAR SEAS, 



A GREAT PORTION OF THE MORE RARE AND INTERESTING PLANTS THAT ORNAMENT THIS 



VOLUME WERE COLLECTED, 



UNDER CIRCUMSTANCES OF SINGULAR DIFFICULTY. HARDSHIP, AND DANGER; 



THE WORK, 



THUS INDEBTED TO THEIR EFFORTS, 



IS MOST RESPECTFULLY DEDICATED, 



BY 



THEIR AFFECTIONATE FRIEND, 



AND OBLIGED SERVANT, 



\ 

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W. J. HOOKER 



a 



