X 



PEEF ACE . 



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contributions wMch, true to his promise, he has sent me 

 relative to a district over which I did not pass. 



I gratefully acknowledge the service rendered to me by 

 Mr. John Bro'wne, of Philadelphiaj who, as an amateur, has 



t 



acquired a high reputation amongst photographers. 



Mr. 



Browne not only initiated me into the art, but sent out after 



m 



mc all the necessary instruments and chemicals. 



It is with great pleasure also that I thank Major Calhoun 

 and Dr. Parry for their valuable contributions, both in the 

 field of adventure and science. 



Lastly, I shall not soon forget the debt of gratitude I owe 

 to my fellow-countryman and friend Mr. E. K. Cautley, 

 whose assistance duiing the production of this book has been 



unceasmg 



W. A. BELL. 



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18, Heetford Steeet, 



Maypaib, London, 



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Maij, 1869 



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