COAL
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Bird Creek Lumber Co. j
PHONE 52Y. 1
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\AA ALASKA
-i STEAMSHIP
\COMPANY
Fast and commodious steamers sailing between Seattle, Ketchikan,
Wrangell, Juneau, Skagway, Cordova, Valdez and Seward.
Sails Seattle Arrives Anchorage
APRIL 22 ALASKA APRIL 29
APRIL 28.MARIPOSA MAY 5
MAY 4 NORTHWESTERN MAY 11
MAY 10 ALAMEDA MAY 17
This company reserves the rjght to change schedule of steamers with
out notice. Tickets on sale at up-town office, Kmpress Building.
PACIFIC STEAMSHIP CO. 1
ADMIRAL LINE *
ALASKAN SAILING DATES
Lv. Seattle Ar. Anchorage
Apr. 17 ...EVANS... Apr. 25
Apr. 25.. FARRAGUT. . May 3
May 3 ...WATSON ..May 11
May 11 ...EVANS... May 19
-»
Sailings from Seattle to Sfi
CALIFORNIA " *
Mondays, Fridays & Saturdays j|!
Steamers ic
President, Governor, Queen,
Senator, Umatilla, Admiral
Schley and Admiral Dewey, jtj
SOUTHERN CALIFORNIA ROUTE. gj
San Francisco to Los Angeles, daily except Sunday. Uj
San Francisco to San Diego, Monday, Thursday and Saturday. S
STEAMERS HARVARD, YALE, PRESIDENT, GOVERNOR, S
ADMIRAL SCHLEY AND ADMIRAL DEWEY. jjj
Schedule Subject to Change Without Notice. jp
For Full Particulars. T. B. WATSON, Agent, Anchorage, Alaska, yj
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Launch Wilhemina i
JOHNSON AND THOMPSON jjj
Twice a week trips to all points on'Tumagain Arm. y.
See bulletin boards for schedule. £fi
m
a For information call City Auto Service. PHONE 89R. jjj
S
_LAUNCH “SWAN” |
Capt. N. J. Gaikeina. 8j
Daily Trips to Knik and Goose Day from Govern- jjj
ment Dock No. 1. W
See Bulletin Boards for Schedule $
Ticket Agencies at Baxter’s and City Auto Service, jjj
Phone 89-R XX.SXX.XXX
Power Schr. Lina K.
"SAFETY AND SERVICE"
Will Make Regular Trips to
All Turnagain Arm Points.
PARKER & EATON
i
I
l
(Continued from page 4)
Following are some of the conclu
sions reached by the company’s engi
neers in their investigation of the
causes of the subsidence, as published
in the report of Livingston Wernecke,
geologist for the company:
“The surface subsidence between
the Mexican and 700 foot mills, which
appeared in 1913, was preceded by
caving of the stopes in the Mexican
mine. A basalt dike with a decided
fault, which cuts this ground diagon
ally to the strike of the slates and ore
body, has formed a line of weakness
i by which the caving reached the sur
| face. No undiluted salt water reaches
the mine in this vicinity. The salt
water seems to be diluted with an
! equal volume of fresh water, and to
have traveled some distance through
I water courses.
“The surface subsidence in the vi
■ cinity of the Treadwell club, N'atator
i
i ium, central hoist, and 700-foot mill
j is connected with the movements in
'the immediate bed-rock.
“The stopes in the Treadwell mine
below this subsiding area are full of
j caved ore and caved waste, as far as
can be determined by inspection. v
I ‘Underground investigations show
that all pillars in the vicinity under
i consideration have been crushed. Some
on the 1,250 and 1,050-foot levels
; were mined so that they would cave.
I Those at 1,450 and 1,600-feet caved
i
i without assistance and some of those
at 1,750 feet crushed while the stopes
were full of broken ore.
“A reasonable conclusion from the
I above facts is, that the weight of
| overlying rock has broken the hang
ing wall, and it is resting on the caved
ore and caved waste. This is particu
larly likely to be true along the flat
dips, and at the change from a steep
to a flat dip, which forms a sag in
the hanging wall. Part of the waste
is from the glory-hole and part from
the hanging wall.
“Air-blasts, or the caving of rock
.with explosive violence from some in
| ternal or molecular strain, have pro
duced a peculiar caving phenomenon
TII)K TAHLK FOR AXCHORAGK.
Thursday, April 26.
Low Water . 2:19 a. m. 1.1 feet
High Water . 9:1 1 a. in. 29.1 feet
Low Water . 2:T>0 p. in. 0.2 feet
High Water .10:13 p. in. 27.1 feet
Friday, April 27.
Low Water . 4:06 a. ni. 5.7 fret
High Water .9:55 a. in. 27.2 feet
low Water . 4:40 p. in. 1.6 feet
High Water ...... 11:09 p. in. 26.1 feet
TRAIN SCHEDULE.
Effective 12:01 a. in., Monday, April
2.3, 1917, a mixed passenger and freight
train will be run betwt+n Anchorage
and Matanuska, Matanuska and king,
and between Anchorage and Rabbit on
the following schedule.
Main Line.
Northbound Sout h bound
Daily »*x. Daily ex.
Sunday Sunday
Leave Arrive
7:20a.m... 0.0 Anchorage .. 9:15p.m.
7:55 a. in.. . 4.8 Whitney .... 8:50 p. in.
8:25 a. in.. . 12.3 Kuney . 8:30 p. in.
9:10 a. in.. .21.8 Rirchwood ... 7:50 p.m.
9:40 a. m... 27.6 Kklutna . 7:20 p.m.
Arrive Leave
10:10 a. m..36.4 Matanuska . . 6:45 p. m.
Matanuska Branch
Northbound Southbound
j Daily ex. Dally Ex.
i Sunday Sunday
1 Leave Arrive
| 11 :00 a. m.. 26.4 Matanuska .. 6:20p.m.
! 11:30 a. m.. 42.9 Rainier . 5:55 p.m.
I 12:20 p. in.. 49.5 Moose Creek. 5:25 p.m.
Arrive Leave
12:40 p. m..55.0 Eska . 4:50 p.m.
Leave Arrive
12:50 p. m. .55.0 Eska . 3:08 p. in.
1 :10 p. in.. 58.7 Granite . 2:53 p.m.
Arrive Leave
1:25 p. m.. 60.6 King . 2:45 p.m.
Main Lina
Southbound Northbound
Tuesday, Thursday and Saturday only.
Leave Arrive
9:00 a.m... 0.0 Anchorage .. 10:45 a.m.
9:20 a. in... 5.0 Campbell ... 10:25 a. in. !
Arrive Leave
9:45 a. m... 10.4 Rabbit . 10:00 a.m.
Mixed train leaving Anchorage north
bound will stop Just north of road cross
ing, Terminal Yard, Anchorage.
\ -Mrinrinrinr
■0013131313131
*!***!«#;!*;!
* REDUCE THE HIGH COST OF LIVING BY TRADING WHERE YOUR
S DOLLAR HAS MORE CENTS — WE BUY IN LARGE QUANTITIES
dj ONLY, THEREBY SAVING YOU ALL MIDDLEMAN'S PROFITS.
j£ PRICES REASONABLE— PROMPT DELIVERY— —COURTEOUS TREATMENT
PHONES: STORE 7-R OFFICE 20-R
from the backs of some stopes and j
faces of some drifts, but undoubtedly j
is not the cause of the intense shat-i
tering of pillars.
“The backs of cross-cuts and drifts j
are supported by an invisible arch
ring in the rock, the shape of which
depends on the elastic properties,
broken or fractured condition of the
rocks, the dip of the formation, and
weight of overlying rock. The amount
that the axis of this arch-ring is in
clined from the vertical depends on
the dip of the formation.
“The backs of the stopes are sup
ported by an invisible vault, which de
pends on the same properties of the
rock as the above arch-ring. The in
clination of its axis, also, depends on
the dip of the formation.
“If all the stope-pillars are shat
tered, it is reasonable to believe that
the fissile and broken condition of the
slate, the steep and variable dip, the
the variable elastic properties of
slate, diorite, and greenstone, and the
cross-cutting dike-fault make an im
mense vault to span the entire area
an impossibility.
“The axis of this theoretical cone
will be inclined approximately 20 de
grees from the vertical toward the
northeast, and will intersect the 700
foot dike-fault. It is reasonable to
conclude that the slate has broken
along this cross-cutting line of weak
ness and reached the surface, where
the subsidence has taken place.
“The 700-foot mine dike-fault,
which is similar in every way—except
the one difference mentioned below—
to the Mexican dike-fault, was first
noted in May 1913 on the 990-feet lev
el of the 700-foot mine.
“A severe cave followed in October,
1913, in the slopes of the vicinity,
from 1,320 to the 880-foot level. This
was the origin of the present subsi
dence, which, after being augmented
by further saving in June 1915, in the
Treadwell mine, reached the surface
i in July, 1916.
"The 700-foot dike-fault differs from
j the Mexican dike-fault in that undi
luted sea water flows along or near
it, and enters the Treadwell mine on
the 1,600-foot level.”
The management of this group of
mines has been watching the result
of the earth-movements and the in
flow of water, and the volume of the
mine-water is being measured care
fully and systematically. Many an
alyses have been made to determine
what proportion of the water is en
tering from the channel. Investiga
tions have led to the belief that com
paratively little sea-water entered the
mine before 1916, hut during that
year the inflow of salt water is esti
mated to have reached 39 gallons per
minute. Whether or not this flow will
become greater remains to be seen,
but it is feared that it may. Several
lines of weakness cross the formation
and the ore bodies, in the forms of i
dikes and faults, and it is from these I
that the greatest danger is appre- ,
hended.
The concensus of opinion of the en- 1
SEE....
Our New Stock of CUT GLASS, CROCKERY, CHINA
GRANITE AND ALUMINUM WARE. «
OIL CLOTH, Builders’ and Heavy Hardware. •
_' STOVES AND RANGES. 1
| C. W. BOLTE I
| 726 4th Avenue. Anchorage, Alaska, jg
Alaska Pool Room j;
? Fourth Ave.. Near I). F
j Cigars. Tobaccos, Candies, Soft Drinks. F'ruits, Concord ;;
| Grape Juice. ;;
| music ::
| JOSEPH SCHMITBAUER. - - Proprietor. F
(?X^03X5XfX5XsX^00<0®(0S)0®®®(005Xj)0000(£)®(000(2X£Xa)(0000®0(sX5X5)®®®(fX5)®®(2)0
Heoo & Laurence ]
: Members Photographers’ Association of America,
| Washington, D. C.
I High Class Portrait Work |
!§ Artistic and Pictorial Photography. §
(EXPERT KODAK FINISHING.
| FRAMES MADE TO ORDER |
% Just Arrived ;
COMPLETE STOCK OF UP-TO-DATE
| MOULDINGS.
| LARGE ASSORTMENT OF HAND MADE FRAMES g
0 _ I I
0 __ ( I
0 I *
HEGG & LAURENCE, I I
£ Masonic Building. w
..
gineering staff of the mines is that
further drawing of caved ore will
cause more surface subsidence, and a
probable increase of salt water, but
if the drawing proceeds with caution,
and all indications are carefully
watched, no disastrous flood of salt
water will follow.
Foui' preventive measures have
been suggested: (a) lJulkheading each
level near the Combination shaft,
drawing the available caved ore, and
letting the upper part of the mine
fill; (b) Filling all open stopes above
the 1,750-foot level with tailing, to
prevent further caving: (c) Prospect
ing for the dike-fault at the surface,
and building a coffer-dam or bulk
head to exclude all sea-water and fill
it with tailing; and (d) Filling Gasti
neau channel 300 feet or so from the
present shore-line with tailing to ex
clude a part of the sea-water and pre
vent any possible flood from the chan
nel. The last is being done at present,
and this, with careful drawing of cav
I ed rock should minimize the probable
! danger.
Although the quantity of water
pumped from the Treadwell mines is
.'mall as compared with some mines.
27 per cent of it is salt water from
Gastineau channel. 'Ibis, with the sur
face subsidence near the shore along
a line of structural weakness, is suf
ficient to constitute a menace if the
drawing of ore had continued at the
rate of 1,000,000 tons per year. This
condition has been eliminated tempo
rarily by decreasing the amount of
ore drawn.
Toothsome dainties, wholesome edi
bles. North Pole Bakery. 881
Wood Undertaking Co..
FUNERAL DIRECTORS
LICENSED EMHALMERS
Anchorage Matanuska
Try a Times Want Ad for results.
OUR NATIONAL STRENGTH
THE NATION’S MIGHT IS INFLUENCED BY ITS EVERY CITIZEN. PATRIOTISM IS FOR ALL, AND ONE OF ITS PRACTICAL FORMS IS IN
TELLIGENT INDIVIDUAL EFFORT THAT DEVELOPS COLLECTIVE FINANCIAL STRENGTH—SO IMPORTANT A FACTOR IN NATIONAL SUPREMACY.
CONSERVATION UPON THE PART OF THE INDIVIDUAL—THE BUILDING OF A SURPLUS—IS ESSENTIAL TO BOTH NATIONAL AND PERSON
AL PROTECTION.
THE OFFICERS OF THIS INSTITUTION STAND FOR AMERICA FIRST—AND ALL THE TIME.
BANK OF ANCtOORAGE
ANCHORAGE, ALASKA.