DEDICATION, 



progress in the pleasing paths of Systematic Botany, 

 it was my original wish to facilitate. But although 

 that wish has been disappointed by the intrusion of 

 a multiplicity of obstacles, and ultimate abandon- 

 ment of my original plan, still it is within the 

 scope of the plan now adopted to facilitate the 

 study of Systematic Botany, at least in as much as 

 it is preparatory to that of Physiological Botany, 

 and thus legitimately to connect and elucidate the 

 two grand departments of the study of Plants. It 

 will readily be admitted that my undertaking has 

 been laudable ; and if I have succeeded in the ex- 

 ecution of it so as to merit the approbation of your 

 Ladyship, I shall be encouraged to hope that the 

 result of my labours is not altogether unworthy of 

 the notice of the public. 



I have the honour to be, 

 Madam, 



Your Ladyship's most obedient and 

 most obliged Servant 



P. KEITH. 



