20 



WEEDS OF THE FARM AND GARDEN 



As examples of presence in clover fields of weeds intro- 

 duced with seed, a few selected areas observed July, 1908. 

 may be cited. Three areas 10 feet square situated south- 



Fig. 13. Goldfinch eating the seed of dandelion. (U. S. Dept. 

 Agrl.) 



Fig. 14. A, a, b, pod of wild licorice. B, c, "seed" of cocklebur; d, 

 section of carrot seed; scattered by animals. (Dewey, U. S. Dept. Agrl.) 



