Plate I. 



THE CELLS. 



IT 



It) 



Oneral Subject irf tho plata. TV hat does fig. 1 represent? Of what Is It a 

 type? Why? Name lit organ*. What docs 63. 2 represent? Which the 

 vertical section? The Transverse ? Meaning of Transferee. How 

 from horizontal? Why? Vertical, how does It dlftVr from Longitudinal ? 

 What part t / What to the large white dota at top ? Name the s 

 bundle.', beginning at a. What bundles of cells in tho figure ran In a vertical 

 direction? What linua In * transverse or horizontal direction ? Fig. 3, dillVr- 

 ottwtwoeottandflg.13. What other fonns of the Duct? Fig. 4. Fig. 5, at a. 



What Indicated by tho arrows? Fig. 6, explain the parts. Fig. 7, describe. 

 Figs. 8, 9 anil 10, ilefinc. What d.u-s f\y. IS represent? Tho circular lines In 

 the transverse section. The straight lines ii. the vertical. Tho white grooves. 

 Fig. 19, tho round spots. To what system do figs. 4, 5 and 7 belong ? What 

 figures belong exclusively to tho vertical system ? What to both vertical and 

 horizontal ? Which part to each ? What does flg. 14 represent ? IS ? Is flg 

 16 a vegetable product ? 



