iv DEDICATION. 



nor have I any other claim to merit, than that of 

 having edited the last remnant of his scientific labours. 

 To your Lordship, however, I fortunately need not 

 appeal for that kindness which will find excuse for 

 any errors and imperfections in the style and arrange- 

 ment of the following pages ; and the same kindness will 

 prompt you to believe, that, the substance, if defective, 

 might have been amended and improved, had the care 

 of revisal been left to the author himself, rather than 

 to his widow. 



With deference therefore, though not without con- 

 fidence, I submit this work to the Public, under the 

 protection of your Lordship's name, and subscribe 

 myself, with feelings of gratitude and respect, 

 Your liordship's 



Much Obliged 



And most Obedient Servant, 

 S. BOWDICH, 



London, March, 1825. 



