TO 



DOCTOR NICHOLAS BELLVILLE, 



OF 



NEW-JERSEY. 



MOST RESPECTED SIR, 



PERMIT me thus publicly to acknow- 

 ledge my obligation to you, for the useful 

 instructions which I have obtained from 

 you ; for the friendship and polite attention 

 which I have ever leceived from yourself and 

 amiable family during my apprenticeship ; 

 At the same time to express the high opinion 

 which I always have had, and still entertain 

 of your talents, since the little progress which 

 I have made in the science has made me the 

 more competent to judge. 



I entreat you therefore, to consider this 

 essay as a tribute of gratitude ; and to re- 

 ceive the warmest wishes for your health, 

 happiness, and long continued success in 

 your profession. 



Tour greatly indebted pupil and friend^ 



ENOCH A. GREEN. 



