n kington.] FORMS SENT TO MINERS. 23 
Form 4- — Open cut {not worked by hydraulicking). 
Depth of overburden stripped. 
Method of stripping; by ground sluicing, hydraulicking, scraping, or booming. 
Cost per cubic yard of stripping; amount stripped in a given time. 
Source of water. 
Amount of water in miner's inches. 
Length of ditch or flume and dimensions. 
If water is pumped for sluicing, kind of pump used and cost of pumping per cubic 
yard of gravel handled. 
Dimensions and grade of sluice boxes and number used. 
Is mud box used? Dimensions. 
Disposal of large stones. 
Size of lumber used; one or more strings of boxes. 
System of joining and setting up boxes. 
Kind of riffles, cost and life. 
Dimensions of pit worked with one set-up, frequency of new set-ups, and time con- 
sumed in changing. 
How is seepage water handled, by pump or drain? 
Dimensions, length, grade, capacity, cost, and method of constructing drain; diffi- 
culties with drain. 
Is China pump used? Capacity; cost of pumping. 
Is power pump used? Capacity; cost of pumping. 
Describe system of dams, if used, method of construction and cost. 
How are tailings handled? If scraped by horses, cost of scraping. 
Per cent of gold saved in boxes, if known. 
The following special queries apply to open-cut work: 
If men shovel into boxes — 
To what height do men throw? 
Are platforms used? 
Depth of ground shoveled in. 
Amount of ground handled per shift per man in cubic yards. 
If horse scrapers scrape into boxes — 
How many cubic yards per day will one team scrape into boxes? 
Cost per day of team and driver. 
Per cent of gold saved. 
If steam scraping is employed, in handling pay or tailings — 
Describe plant and cost, cost of operation, capacity, and difficulties encountered. 
Amount and kind of fuel used. 
Number of men required to scraper. 
Distance to which material is conveyed, and height elevated. 
If derricking is employed — 
Describe capacity of plant, give cost, system of operating, amount and distri- 
bution of power and labor. 
If inclined track and car system is used — 
Number and capacity of cars handled per shift; number and length of tracks 
in use. 
Length of tram to bottom of incline. 
Number of men to a car. 
Length of incline and vertical height of dumping platform above bed rock. 
Amount of power to elevate; system of elevating, automatic devices used. 
If steam shovel is used — 
Size, make, capacity, and cost of shovel. 
Power used, amount, and how generated. 
Capacity of dipper. 
