BY D. MCALPINE. 



697 



Fig. 11.— Portion of vascular net of quince, enveloping tlie flesh beneath 

 the skin, and showing the meshes ( x 4). 



Fig. 12.— Portion of plume-like branches, taken from a decaying quince in 

 water, and appearing like fine fluffy material when the stem is 

 removed. The innumerable branchlets extending to the skin are 

 .sliown, and the deeper-lying branches from which they originate 

 (x3). 



Fig.13. — Surface-view of skin of quince, showing the "window-cells," 

 about the same size as those of the pear. There are actual openings 

 in the skin, round or polygonal (lenticels), and here and there, the 

 stomata still persist ( x 100). 



Fig. 14. —Cross-section through skin and flesh, showing the thickened 

 outer walls(20ix) of the oblong epidermal cells, and several laj'ers of 

 subepidermal cells. The vascular bundles extend to the subepi- 

 dermal laj'er, and groups of "stone-cells" are shown, with the 

 elongated parenchyma-cells radiating from them ( x 100). 



