Anatomy of the Vine, 



17 



glass, the various parts will be readily discovered, lying in a 

 longitudinal direction, somewhat similar to Jig. 5. ; and, as he 

 proceeds, let him compare the parts, as they arise to his view, 

 with the engraving, that he may know what to remove and 

 what to leave. 



ab cd represent the outward ap- 

 pearance of a collet, except at 



ef, where the two layers of the 

 cuticle are separated. 



g, The cellular texture, which 

 lies under the cuticle, as well 

 as round the bundles of the 

 vascular texture at k ; and it 

 invariably lies between every 

 division of the bark and of the 

 alburnum, forming the cellular 

 or divergent rays. 



i i i, Various bundles of vascular 

 texture, from which the cellu- 

 lar texture is removed, that 

 they may be more distinctly 

 seen; at k it is left, but the 

 ends of the bundles may be 

 seen at I. 



m w, The liber ; each division 

 that composes it lies under 

 its own particular vascular 

 bundle ; see the tops of them 

 lying in front of each division 

 of liber, from I to the opposite 

 side. 



n, The alburnum containing the 

 ligneous divisions, which cor- 

 respond exactly in number with 

 the divisions of the liber and 

 vascular bundles. 



o, The medullary sheath, com- 

 posed of the primitive concen- 

 tric layer with the spiral ves- 

 sels therein. 



p, The medulla. 



I shall refrain from further observations on Jigs. 4 and 5. 

 conceiving that the dissection of the collet, with their assist- 

 ance, will have been sufficient to enable a beginner to com- 

 prehend and distinguish the various parts that compose a 

 division. I will now proceed to describe the ascending sap- 

 vessels of the alburnum, marked hk in Jig. 4. A longitudinal 



Vol. VI. —- No. 24. c 



