PHYSIOLOGY OF TREES. 277 



And while I acknowledge having- availed my- 

 self of much valuable information contained in 

 previous publications, I must not omit returning 

 my best thanks to Messrs. Sweet, Groom, and 

 other floricultural friends, who obligingly an- 

 swered every question proposed to them by me 

 on the general subject. And while discharging 

 these debts of ordinary civility, I should be doing 

 injustice to my own feelings, did I neglect to 

 acknowledge my entire satisfaction in finding 

 that I stand not alone in opinion relative to the 

 physical constitution of bulbs ; but am preceded 

 by a Lady whose penetration is only equalled 

 by the spirit she has evinced in freeing herself 

 from the trammels of obsolete science, and given 

 a lesson even to her preceptors. I mean Miss 

 Maria Elizabeth Jackson, of Somerset Hall, 

 Staffordshire, the elegant authoress of " The 

 Florist's Manual," and other elementary works 

 on Botany. I have only seen her Florist's Ma- 

 nual ; but the few remarks contained in this, I 

 must say, transcend all that has been previously 



