THE 



GARDENER'S MAGAZINE, 



JUNE, 1830. 



PART I. 



ORIGINAL CORRESPONDENCE. 



Art. I. 



Sir, 



On the Anatomy of the Vine. By Walter William 

 Capper, Esq., Bath. 



{Continued from p. 139.} 



I now beg to present to your notice the gradual growth of 

 the summer shoot of the vine. But I must previously state, 

 that, amongst physiologists even in the present day, there are 

 those who contend that the liber is converted, during the 

 latter part of its growth into alburnum ; this may be proved to 

 be incorrect by the following simple experiments : — Separate 

 from the vine the whole of a summer shoot, then cut through 

 one of the smallest uppermost collets, with a clean sharp knife, 

 the whole of the vessels will be found to be extremely deli- 

 cate, and so blended together, that a 

 powerful glass will render no assistance 

 in discovering them ; but apply to their 

 surface the sulphate of iron, when the 

 liber may be admitted to be present by 

 the blackish precipitate. However, by 

 referring to jig. 46., it will give some 

 assistance in concluding how the various 

 vessels are arranged, from having disco- 

 vered the liber, as in the following de- 

 scription of vessels, A, ofj%. 46. 



[A.] 



a, Medulla - - 



b, Spiral vessels 



/, Liber - - - 



g, Vascular texture 

 //, Cellular vessels and cuticle 



Vol. VI. — No. 26. s 



h The primitive vessels of an ex- 

 tending spring shoot of a vine. 



