CRANE.| Prospecting, Mining and Milling Machinery. 287 
of it the working of the table can be adjusted very closely, 
and, if required, the greater portion of any mineral, as zinc, 
copper, galena, etc., can be cutout.” 
A top view of this table is shown in figure 67 and plate 
XXX VIII, where the zones or belts of concentrates (lead and 
zinc in this case) are seen. The ore is brought to the table by 
the launder, A, which discharges into the pulp box, B. From 
B the material to be treated is discharged onto the table from 
the back side of B, as shown by the arrows. 
Motion is given to the table by means of the crank, pitmans, 
levers, sliding bar, and spring, as D, C, and kK, H, HE, and F, 
which are shown to good advantage in figures 67 and 68. 
The slime which passes over the table and escapes between 
the finger, M, and the guide-board, JN, is caught in the trough, 
Z, and conducted back to the elevator wheel, O, by which it is 
raised and delivered to the pulp box, B, through the launder, 
P. The elevator is driven by a combination of belts and 
different sized pulleys from the main drive shaft, as shown. 
A section of the elevator is shown in figure 69. 
The bulk of the slime which is thoroughly freed of ore is 
run into the launders, X and Y, thence to the tailings pile. 
An intermittent jerking motion similar to that of the table is 
given to the launder, Z, by means of a lever, Q, and spring, 
I, thus facilitating the movement of the slime through the 
launder. 
_The riffles are shown in parallel lines on top of the table. 
A cut of one of the latest machines is shown in figure 66. 
A mill installed with eight of these tables was in operation 
in North Galena the summer of 1899; later it was moved to 
the Mastin diggings, where it was operated for some time on 
tailings. 
BUDDLES. 
There are two forms of buddles, the square and the round. 
The square buddle consists of a shallow rectangular box, A, 
figure 71, about ten feet long by four feet wide. Situated 
at one end of this box is a distributer or apron, B, which dis- 
tributes the slimes, delivered to it by the launder, C, evenly 
over the bottom of the box, A. The water and slimes flowing 
evenly upon the bottom of the tank or box, which is inclined 
