warman.]  BULLETINS.  39 
31.  Systematic  review  of  our  present  knowledge  of  fossil  insects,  including 
myriapods  and  arachnids,  by  Samuel  Hubbard  Scudder.  1886.  128  pp.  Price, 
15  cents. 
32.  Lists  and  analyses  of  the  mineral  springs  of  the  United  States;  a  prelim- 
inary study,  by  Albert  C.  Peale,  M.  D.     1886.     235  pp.     Price,  20  cents. 
33.  Notes  on  the  geology  of  northern  California,  by  J.  S.  Diller.  1886.  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,  M.  D.  1886.  54 
pp.,  5  pis.     Price,  10  cents. 
35.  Physical  properties  of  the  iron-carburets,  third  paper  (preceding  papers  on 
the  iron-carburets  in  Bulletins  14  and  27),  by  Carl  Barus  and  Vincent  Strouhal. 
L886.     62  pp.     Price,  10  cents. 
36.  Subsidence  of  fine  solid  particles  in  liquids,  by  Carl  Barus.  1886.  54  pp. 
Price,  10  cents. 
37.  Types  of  the  Laramie  flora,  by  Lester  F.  Ward.  1887.  pp.  1-117,  347- 
354  (no  pages  118-348,  but  instead),  pis.  1-57.     Price,  25  cents. 
38.  Peridotite  of  Elliott  County,  Kentucky,  by  J.  S.  Diller.  1887.  31  pp. ,  1  pi. 
(map).      Price,  5  cents. 
39.  The  upper  beaches  and  deltas  of  the  glacial  lake  Agassiz,  by  Warren 
I'phani.     1887.     84  pp.,  1  pi.  (map).     Price,  10  cents. 
40.  Changes  in  river  courses  in  Washington  Territory  due  to  glaciation,  by 
Bailey  Willis.     1887.     10  pp.,  4  pis.  (maps).     Price,  5  cents. 
41.  On  the  l'os>il  faunas  of  the  upper  Devonian — the  Genesee  section,  New 
York,  by  Henry  S.  Williams.     1887.      123  pp.,  4  pis.     Price,  15  cents. 
42.  Report  of  work  dene  in  the  division  of  chemistry  and  physics,  mainly 
during  the  fiscal  year  1885-86;  F.  W.  Clarke,  chief  chemist.  1887.  152  pp.,  lpl. 
(map  ).      Price,  L5  cents. 
Researches  cm  the  lithia  micas,  by  F.W.Clarke,  pp.  11-27,  pi.  i. 
The  minerals  of  Litchfield,  .Main.',  by  F.  W.Clarke,  pp.28-38. 
Turquoise  from  New  Mexico,  l»>  F.  W.Clarke  and  J.  S. Diller,  pp. 39-44. 
The  gneiss  dunyte  contacts  of  Corundum  Hill,  North  Carolina,  in  relation  to  the  origin  of 
corundum,  by  Thomas  ML  Chatard,  pp.  45-63. 
A  method  for  the  separation  and  estimation  of  boric  acid,  with  an  account  of  a  convenient 
form  of  apparatus  for  quantitative  distillations,  by  F.  A.Gooch,  pp.  64-72. 
A  method  for  the  separation  of  sodium  and  potassium  from  lithium  by  the  action  of  amyl 
alcohol  on  the  chlorides,  with  some  reference  to  a  similar  separation  of  the  same  from  mag 
nesium  and  calcium,  by  F.  A.. Gooch,  pp. 73-88. 
The  indirect   estimation  of  chlorine,  bromine,  and  iodine  by  the  electrolysis  of  theirsilver 
salts,  with  experiments  on   the  convertibility  of  the  silver  salts  by  the  action  of  alkaline 
haloids,  by  J.  Edward  Whitfield,  pp.  89-93. 
On  two  new  meteoric  irons  and  an  iron  of  doubtful  nature,  by  R.B.Riggs,  pp.94-97. 
The  effect  of  sudden  cooling  exhibited  by  glass  and  by  steel,  by  C.  Barus  and  V.  Strouhal,  pp. 
98-131. 
The  specific  gravity  of  lampblack,  by  William  Hallock,  pp.  132-135. 
Miscellaneous  analyses,  pp.  136-149. 
43.  Tertiary  and  Cretaceous  strata  of  the  Tuscaloosa,  Tombigbee,  and  Ala- 
bama rivers,  by  Eugene  A.  Smith  and  Lawrence  C.  Johnson.  1887.  189  pp., 
21  pis.     Price,  15  cents. 
44.  Bibliography  of  North  American  geology  for  1886,  by  Nelson  H.  Darton. 
1887.     35  pp.     Price,  5  cents. 
45.  The  present  condition  of  knowledge  of  the  geology  of  Texas,  by  Robert  T. 
Hill.     1887.     95  pp.     Price,  10  cents. 
46.  Nature  and  origin  of  deposits  of  phosphate  of  lime,  by  R.  A.  F.  Penrose,  jr., 
with  an  introduction  by  N.  S.  Shaler.  1888.  143  pp.,  3  pis.  (maps).  Price,  15 
cents. 
