8H THE SUGAE BEET. 



lower. The sugar increases from top to bottom.^ In 

 the distribution according to Pay en this is also appa- 

 rent, the extremity being mainly composed of cells 

 having a large amount of saccharine elements in their 

 interior. We have made several sections in the root, 

 which demonstrate this : — 



1st section 9.35 of sugar 



2d "..... . 10.02 " " 



3d " 10.05 " " 



4th " 10.42 " " 



5th " 10.97 " " 



6th " 11.03 " " 



(On the other hand, Dubrunfaut would attribute the 

 difference in the saccharine percentage to an osmotic 

 effect, and thereby explain why a small root should 

 have more sugar than a large one. The argnment is 

 that the vascular tissue is in connection with the 

 leaves and adhesive roots, thus absorbing the saccha- 

 rine and saline principles. The sugar will pass into 

 the cellular tissue by the principle of osmose, and the 

 proportion existing here between the chemical compo- 

 sition of these tissues no longer exists in large roots.) 



' According to Champignon and Pellet — 



Analysis near Analysis at the 



the neck. extremity of root. 



Water. . . . • 86.64 84.48 



Sugar 7.30 9.70 



Cinders .... ].02 I ... 1.26 



C QO 



Organic subst«.nce . . 5 04 . - - r 



100.00 100.00 



I 6.06 l-2«) 



) 4.56 i 



