THE PAN1CUM DACTYLON. 



9 1 



Let us now see, more closely, the two plants which, 

 according to the botanists, furnish the root of the Dog's- 

 tooth. 



FIG. 23. A River's Sandy Bank. 



When walking along the sandy bank of a river, you must 

 frequently have trodden under foot a low, almost crawling 

 herb, remarkable for its violet-red spikes, which, three to 



