540 BAROMETRIC ALTITUDES. 
Squirrel Point, bed-rock . : : : ‘ : " : . . - 
Average bed-rock in lowest part of channel at Niece and West’s diggings . 
Track level at mouth of tunnel of Washington Mining Company . 
Bed-rock near road (opposite Savage’s) where it disappears under the gravel 
Bed-rock at bottom of Mallory’s incline ; ; ‘ : ; : ° 
‘Street level, front of Grand Hotel, You Bet 
End of dump at Hubbard’s tunnel, Pine Hill 
Bed-rock level, end of Pine Hill, near Hubbard’s 
*Junction of roads from You Bet to Little York and to Niece and West’s old mine 
*Top of northwest bank at ‘ Waloupa” 
Average bed-rock at ‘“‘ Waloupa” 
West end of range near “Copper District” . ; ' ; : 
Bed-rock in mines on Snake Ravine, west of White House . . ; , - 
Mule Cajon, on rim of channel, near Major Park’s 
*Nevada Company’s boarding-house 
Rim-rock near high flume, Sardine Flat . é - 5 : 3 
Point near old shaft on Chicken Point 
High bed-rock on Chicken Point . 
Top timber of Cozzen’s and Garber’s old shaft 
Bed-rock at outlet of mines, opposite Cozzen’s and Garber’s old mill 
Blue line of sandy deposit in main channel, Wilcox Ravine 
Sluice near old blacksmith shop, at mouth of Brockmann’s old mines, Missouri Cafion 
Mouth of Brockmann’s bed-rock ravine . 
High bed-rock in cut at head of north fork of Missouri Cafion, near Timmens’s 
Bed-rock near Hussey’s 
Point on Bunker Hill ditch, where slate was first seen in the bottom of the ditch, going 
from Hussey’s ; 
Top of gravel knolls, near high flume, opposite Bunker Hill 
Bed-rock at William’s diggings on Bunker Hill, near Red Dog ; : 
Average deep bed-rock at Red Dog . 
Rim-rock at small opening on Independence Hill 
Average bed-rock, Independence Hill, opposite Red Dog mines 
Level of tailings in Greenhorn Creek, near Gas Cafion (Nov., 1879) . 
Level of tailings in Greenhorn Creek (Dec., 1870) at outlet of small opening on Inde- 
pendence Hill . 
Level of tailings in Greenhorn Creek, half a mile lower down (Dee., 1870) 
Level of tailings in Greenhorn Creek (Nov., 1870) at crossing of road from Red Dog 
to Nevada City 
