40  PUBLICATIONS    OF   U.   S.   GEOLOGICAL    SURVEY.         [bull.  177. 
47.  Analyses  of  waters  of  the  Yellowstone  National  Park,  with  an  account  of 
the  methods  of  analysis  employed,  by  Frank  Austin  Gooch  and  James  Edward 
Whitfield.     1888.     84  pp.     Price,  10  cents. 
48.  On  the  form  and  position  of  the  sea  level,  with  special  reference  to  its 
dependence  on  superficial  masses  symmetrically  disposed  about  a  normal  to 
the  earth's  surface,  by  Robert  Simpson  Woodward.  1888.  88  pp.  Price,  10 
cents. 
49.  Latitudes  and  longitudes  of  certain  points  in  Missouri,  Kansas,  and  New 
Mexico,  by  Robert  Simpson  Woodward.     1889.     133  pp.     Price,  15  cents. 
50.  Formulas  and  tables  to  facilitate  the  construction  and  use  of  maps,  by 
Robert  Simpson  Woodward.     1889.     124  pp.     Price,  15  cents. 
51.  On  invertebrate  fossils  from  the  Pacific  coast,  by  Charles  A.  White.  1889. 
102  pp.,  14  pis.     Price,  15  cents. 
52.  Subaerial  decay  of  rocks  and  origin  of  the  red  color  of  certain  formations, 
by  Israel  Cook  Russell.     1889.     65  pp.,  5  pis.     Price,  10  cents. 
53.  The  geology  of  Nantucket,  by  Nathaniel  Southgate  Shaler.  1889.  55  pp., 
10  pis.     Price,  10  cents. 
54.  On  the  thermo-electric  measurement  of  high  temperatures,  by  Carl  Barus. 
1889.  313  pp.,  frontispiece,  and  9  leaves  containing  figs.  7,  8,  9, 16,  21,  22,  30,  37, 
38,  39,  42.     Price,  25  cents. 
55.  Report  of  work  done  in  the  division  of  chemistry  and  physics,  mainly  dur- 
ing the  fiscal  year  1886-87;  Frank  Wigglesworth  Clarke,  chief  chemist.  1889. 
96  pp.,  1  pi.     Price,  10  cents. 
Studies  in  the  mica  group,  by  F.  W.  Clarke,  pp.  13-18. 
The  analysis  and  composition  of  tourmaline,  by  R.  B.  Riggs,  pp.  19-37. 
Notes  on  certain  rare  copper  minerals  from  Utah,  by  W.  F.  Hillebrand  and  H.  S.  Washington, 
pp.  38-47. 
Mineralogical  notes,  by  W.  F.  Hillebrand,  pp.  48-55. 
Analyses  of  natural  borates,  and  borosilicates,  by  J.  Edward  Whitfield,  pp.  56-62. 
Meteorites  from  Johnson  County,  Arkansas,  and  Allen  County,  Kentucky,  by  J.  Edward  Whit- 
field, pp.  63-64. 
Scorodite  from  the  Yellowstone  Park,  by  J.  Edward  Whitfield,  pp.  65,  66. 
The  flow  of  solids,  or  the  behavior  of  solids  under  high  pressure,  by  William  Halloek,  pp.  67- 
75,  pi.  i. 
Miscellaneous  analyses,  pp.  79-93. 
56.  Fossil  wood  and  lignite  of  the  Potomac  formation,  by  Frank  Hall  Knowl- 
ton.     1889.     72  pp.,  7  pis.     Price,  10  cents. 
57.  A  geological  reconnaissance  in  southwestern  Kansas,  by  Robert  Hay.  1890. 
49  pp.,  2  pis.     Price,  5  cents. 
58.  The  glacial  boundary  in  western  Pennsylvania,  Ohio,  Kentucky,  Indiana, 
and  Illinois,  by  George  Frederick  Wright,  with  an  introduction  by  Thomas 
Chrowder  Chamberlin.     1890.     112  pp.,  8  pis.     Price,  15  cents. 
59.  The  gabbros  and  associated  rocks  in  Delaware,  by  Frederick  D.  Chester, 
1890.  45  pp.,  1  pi.  (map).     Price,  10  cents. 
60.  Report  of  work  done  in  the  division  of  chemistry  and  physics,  mainly  dur- 
ing the  fiscal  year  1887-88;  F.  W.  Clarke,  chief  chemist,  1890.  174  pp.  Price, 
15  cents. 
The  chemical  structure  of  the  natural  silicates,  by  F.  W.  Clarke,  pp.  13-20. 
Some  nickel  ores  from  Oregon,  by  F.  W.  Clarke,  pp.  21-26. 
Natural  soda;  its  occurrence  and  utilization,  by  Thomas  Marean  Chatard,  pp.  27-101. 
Analyses  of  six  new  meteorites,  by  J.  Edward  Whitfield,  pp.  103-111. 
Two  sulphantimonites  from  Colorado,  by  L.  G.  Eakins,  pp.  115-117. 
Coefficients  of  volatility  for  aqueous  chlorhydric  acid,  by  Robert  B.  Warder,  pp.  119-122. 
Analyses  of  jade,  by  F.  W.  Clarke,  pp.  123-127. 
Mineralogical  notes,  pp.  129-137. 
The  subsidence  of  fine  solid  particles  in  liquids  (second  paper) ,  by  <  !arl  Barus,  pp.  139-145. 
A  new  method  of  making  alloys,  by  William  Halloek,  pp.  147-148. 
Miscellaneous  analyses,  pp.  149-174. 
