JOURNAL OF AGRICULTURAL SCIENCE. Vol. IX. No. 4. 



PLATE XV 



' U." Slime heap (mine refuse) covering several acres of land, gradually being washed down to river 

 below, and thus continually contaminating land further down the valley. 



-■,-■■ 1 --( -7 



' V." This Photograph shows fences constructed for no other reason than to prevent animals 



from grazing on poisoned land. 



