ADVERTISEMENT.  Ill 
14.  The  Electrical  and  Magnetic  Properties  of  the  Iron-Carburets,  by  Carl  Barus  and  Vincent 
Strouhal.     1885.     8°.     238  pp.     Price  15  cents. 
15.  On  the  MesoZiQfc  and  Cenozoic  Paleontology  of  California,  by  Charles  A.  White.  1885.  8°.  33  pp. 
Price  5  cents.  * 
16.  On  the  Higher  Devonian  Faunas  of  Ontario  County,  New  York,  by  John  M.  Clarke.  1885.  8°. 
86  pp.    3  pi.     Price  5  cents. 
17.  On  the  Development  of  Crystallization  in  the  Igneous  Rocks  of  "Washoe,  Nevada,  with  notes  on 
the  Geology  of  the  District,  by  Arnold  Hague  and  Joseph  P.  Iddings.  1885.  8°.  44  pp.  Price  5 
cents. 
18.  On  Marine  Eocene,  Eresh-water  Miocene,  and  other  Fossil  Mollusca  of  Western  North  America, 
by  Charles  A.  White.     1885.    8°.    26  pp.    3  pi.    Price  5  cents. 
19.  Notes  on  the  Stratigraphy  of  California,  by  George  F.  Becker.    1885.    8°.    28  pp.     Price  5  cents. 
20.  Contributions  to  the  Mineralogy  of  the  Pocky  Mountains,  by  Whitman  Cross  and  W.  F.  Ilille- 
brand.    1885.    8°.     114  pp.     1  pi.    Price  10  cents! 
21.  The  Lignites  of  the  Great  Sioux  Reservation.  A  Report  on  the  Region  between  the  Grand  and 
Moreau  Rivers,  Dakota,  by  Bailey  Willis.     1885.     8°.     16  pp.     5  pi.     Price  5  cents. 
22.  On  New  Cretaceous  Fossils  from  California,  by  Charles  A.  White.  1885.  8°.  25  pp.  5  pi. 
Price  5  cents. 
23.  Observations  on  the  Junction  between  the  Eastern  Sandstone  and  the  Keweenaw  Series  on  Ke- 
weenaw Point,  Lake  Superior,  by  R.  D.  Irving  and  T.  C.  Chamberlin.  1885.  8°.  124  pp.  17  pi. 
Price  15  cents. 
24.  List  of  Marine  Mollusca,  comprising  the  Quatenary  Fossils  and  recent  forms  from  American 
Localities  between  Cape  Hatteras  and  Cape  Roque,  including  the  Bermudas,  by  William  Healy  Dall. 
1885.    8°.    336  pp.    Price 25  cents. 
25.  The  Present  Technical  Condition  of  the  Steel  Industry  of  the  United  States,  by  Phineas  Barnes. 
1885.     8°.     85  pp.     Price  10  cents. 
26.  Copper  Smelting,  by  Henry  M.  Howe.     1885.    8°.     107  pp.    Price  10  cents. 
27.  Report  of  work  done  in  the  Division  of  Chemistry  and  Physics,  mainly  during  the  fiscal  year 
1884-'85.    1886.     8°.    80  pp.    Price  10  cents. 
28.  The  Gabbros  and  Associated  Hornblende  Rocks  occurring  in  the  neighborhood  of  Baltimore, 
Md.,  by  George  Huntington  Williams.     1886.     8°.     78  pp.     4  pi.     Price  10  cents. 
29.  On  the  Fresh-water  Invertebrates  of  the  North  American  Jurassic,  by  Charles  A.  White.  1886. 
8°.    41pp.     4  pi.    Price  5  cents. 
30.  Second  Contribution  to  the  Studies  on  the  Cambrian  Faunas  of  North  America,  by  Charles  Doo- 
little  Walcott.     1886.     8°.     369  pp.     33  pi.     Price  25  cents. 
31.  Systematic  Review  of  our  Present  Knowledge  of  Fossil  Insects,  including  Myriapods  and  Arach- 
nids, by  Samuel  Hubbard  Scudder.     1886.    8°.     128  pp.    Price  15  cents. 
32.  Lists  and  Analyses  of  the  Mineral  Springs  of  the  United  States;  a  Preliminary  Study,  by  Albert 
C.  Peale.     1886.     8°.     235  pp.     Price  20  cents. 
33.  Notes  on  the  Geology  of  Northern  California,  by  J.  S.  Diller.     1886.    8°.    23  pp.    Price  5  cents. 
34.  On  the  relation  of  the  Laramie  Molluscan  Fauna  to  that  of  the  succeeding  Fresh-water  Eocene 
and  other  groups,  by  Charles  A.  White.     1886.    8°.     54  pp.    5  pi.    Price  10  cents. 
35.  Physical  Properties  of  the  Iron-Carburets,  by  Carl  Barus  and  Vincent  Strouhal.  1886.  8°.  62 
pp.    Price  10  cents. 
36.  Subsidence  of  Fine  Solid  Particles  in  Liquids,  by  Carl  Barus.    1886.    8°.    58  pp.    Price  10  cents. 
37.  Types  of  the  Laramie  Flora,  by  Lester  F.  Ward.     1887.     8°.     354  pp.     57  pi.     Price  25  cents. 
38.  Peridotite  of  Elliott  County,  Kentucky,  by  J.  S.  Diller.     1887.     8°.     31  pp.     1  pi.     Price  5  cents. 
39.  The  Upper  Beaches  and  Deltas  of  the  Glacial  Lake  Agassiz,  by  Warren  Upham.  1887.  8°.  84 
pp.    1  pi.    Price  10  cents. 
40.  Changes  in  River  Courses  in  Washington  Territory  due  to  Glaciation,  by  Bailey  Willis.  1887. 
8°.    10  pp.    4  pi.    Price  5  cents. 
41.  On  the  Fossd  Faunas  of  the  Upper  Devonian— the  Genesee  Section,  New  York,  by  Henry  S. 
Williams.    1887.    8°.    121pp.    4  pi.    Price  15  cents. 
42.  Report  of  work  done  in  the  Division  of  Chemistry  and  Physics,  mainly  during  the  fiscal  year 
1885-'86.    F.  W.  Clarke,  chief  chemist.     1887.    8°.     152  pp.     1  pi.    Price  15  cents. 
43.  Tertiary  and  Cretaceous  Strata  of  the  Tuscaloosa,  Tombigbee,  and  Alabama  Rivers,  by  Eugene 
A.  Smith  and  Lawrence  C.  Johnson.     1887.    8°.     189  pp.     21  pi.     Price  15  cents. 
44.  Bibliography  of  North  American  Geology  for  1886,  by  Nelson  H.  Darton.  1887.  8°.  35  pp. 
Price  5  cents. 
45.  The  Present  Condition  of  Knowledge  of  the  Geology  of  Texas,  by  Robert  T.  Hill.  1887.  8°.  94 
pp.    Price  10  cents. 
46.  Nature  and  Origin  of  Deposits  of  Phosphate  of  Lime,  by  R.  A.  F.  Penrose,  jr.,  with  an  Intro- 
duction by  N.  S.  Shaler.    1888.    8°.     143  pp.    Price  15  cents. 
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.  8°.  84  pp.  Price 
10  cents. 
48.  On  the  Form  and  Position  of  the  Sea  Level,  by  Robert  Simpson  Woodward.  1888.  8°.  88  pp. 
Price  10  cents. 
