380 
CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1905. 
The  clay  lies  in  horizontal  beds  in  contact  with  the  limestone  and  represents  silt  brought 
down  by  Baker  and  Skagit  rivers.     It  is  well  stratified  and  finely  assorted  and  rests  uponi 
beds  of  gravel.     It  is  light  blue  in  color  and  has  an  average  depth  of  1G5  feet.     It  is  exposed 
along  Baker  River  for  a  distance  of  1,350  feet. 
I 
Analyses  of  limestone  and  clay  from  the  property  of  the  Washington  Portland  Cement  Company, 
Baker,  Wash. 
Limestone. 
Clay. 
1 
2 
3 
1 
0.80 
.70 
98.14 
.65 
.'5.41 
1.78 
92.50 
2.30 
58.  75 
25.94 
4.  66 
4.47 
55.  90 
25.  50 
4.90 
2  83 
.51 
1.48 
4.60 
;*.  91 
6.  45 
Nos.  l  and  3  made  by  I'rof.  C.  W.  Johnson,  Scuttle,  Wash. 
Nos.  2  and  4  made  by  F.  C  Newton,  Seattle,  Wash. 
SNOHOMISH  COUNTY.   . 
Limestone  occurs  in  a  number  of  places  in  the  eastern  half  of  Snohomish  County,  but 
only  at  a  point  3  miles  east  of  Granite  Falls,  on  the  Everett  and  Monte  Cristo  Railway,  has 
the  rock  been  quarried  to  any  extent.  The  stone  is  crystalline  and  is  a  member  of  an 
extensive  nut  amorphic  series  extending  in  a  broad  belt  north  and  south.  The  adjacent 
rocks  are  chiefly  slates  and  schists.  A  quarry  has  been  opened  by  the  side  of  the  railway 
track  and  the  stone  is  loaded  directly  onto  the  cars.  The  quarry  has  been  in  operation  for 
several  years  and  the  principal  sales  of  rock  have  been  made  to  the  smelter  and  paper  mill 
at  Everett.  A  limekiln  having  a  capacity  of  100  barrels  per  day  is  in  operation.  The 
property  is  owned  by  the  Canyon  Lime  and  Cement  Company.  Some  investigations  have 
been  made  as  to  the  possibilities  for  a  cement  factory  here,  but  no  active  work  has  yet; 
been  done. 
The  following  analyses  were  made  by  A.  II.  Cederberg: 
Analyses  of  limestone,  calcareous  slate,  and  clay  near  Granite  Falls,  Wash. 
Lime- 
stone. 
Calcare- 
ous slate. 
Clay. 
0.2 
1.4 
98.1 
Trace. 
22.1 
10.6 
59.6 
1.8 
Trace. 
1.4 
61.6 
25.  4 
7.2 
Magnesium  carbonate 
2.3 
Sulphur 
1.6 
Alkalies 
2.94 
KING  COUNTY. 
The  metamorphie  series'  of  rocks  occurring  in  Whatcom,  Skagit,  and  Snohomish  counties 
is  continued  into  King  County.  In  the  vicinity  of  Snoqualmie  Pass  and  at  several  points 
along  the  line  of  the  Great  Northern  Railway,  notably  in  the  region  about  Baring,  outcrops 
of  crystalline  limestone  have  been  found.  Very  little  work  has  been  done  looking  to  the 
development  of  any  of  the  deposits  and  there  is  little  information  at  hand  concerning  them. 
So  far  as  clay  is  concerned  King  County  is  particularly  favored.     Clays  of  excellent 
