PLATF VI. 



He. II. The bedding ground behind the camp shown in Fig. 16, after the 

 sheep had been on it two nights. It was originally covered with a dense growth of 

 herbaceous weeds. 



FIG. 12. The same bedding ground as pictured in Fig. 11, taken one year later, 

 before the sheen reached it. TfiU wac t\,* nUr k^^; , .J ...u:_ L .. _. :_: i L.. 



