ILLUSTRATIONS. 
PLATE J. 
Gold nuggets from the Paracale placer deposit. (Photograph by Martin.) 
Fic. 1. 
2. 
TEXT FIGURES. 
First and second screen test. Curves show assay value of screen 
products. 
First and second screen test. Curves show accumulative percent- 
ages, weights and gold. 
. First and second screen test. Curves show values distributed in 
one ton of original. 
. Screen amalgamation and magnetic test. Curves show the accu- 
mulative percentages of weight. 
. Screen amalgamation and magnetic test. Curves show assays of 
nonmagnetic and magnetic. 
Sereen amalgamation and magnetic test. Curves show distribution 
of values in one ton of original. 
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