A Study of Celery. 115 



I am aware that there are people who will shake 

 their heads and declare that to give such work as " struc- 

 tural botany " in a primary room is the acme of folly. In 

 reply I -have but to say that the "structural botany" in this 

 outline is nothing more that what may be seen with the 

 naked eye. 



I introduce Fig. 32 merely to furnish the teacher with 

 something to put on the board in case she wants to show 



FIG. 32. CROSS-SECTION OF CELERY, SHOWING STRUCTURE. 



the children how a thin slice of celery looks under the mi- 

 croscope, for I judge that few schools are supplied with 

 that very useful instrument. 



The lesson may be given without any glass whatever, and 

 I am sure that the child will be led to discover something 

 of the way nature builds up her organisms. The gentian 

 is too small a plant to dissect in this way, but celery is 



