The Rev. P. Keith on the Origin of Buds. 433 



ascend the stem either through the tubes of the medullary sheath, 

 or through the tubes of the alburnum, or through both ; and 

 although botanists have hitherto had their doubts with regard 

 to the accuracy of the observations in question, yet, after the 

 novel and extraordinary views of Nature which have been opened 

 up to us of late by a microscopical observer of undoubted ability 

 and veracity, we must not be surprised at the wonders seen by 

 others, nor discard their alleged facts without due examination. 



3 K 2 XXII. Obser- 



