i8o 
ADDITIONS  TO  THE  LIBEABY. 
[Nov.  1893, 
Newcastle-upon-Tyne.  North  of  England  Institute  of  Mining  and 
Mechanical  Engineers.  Transactions.  Yol.  xlii.  Parts  1-3. 
1893. 
E.  M.  Touzeau.  Gold-mining  in  Brazil,  73. — R.  A.  S.  Redmayne. 
The  Geology  and  Coal-deposits  of  Natal,  221. 
New  Haven.  American  Journal  of  Science.  Series  3.  Vol.  xliv. 
Nos.  259-261.  1892. 
S.  L.  Penfield  and  S.  H.  Pearce.  Polybasite  and  Tennantite  from  the 
Mollie  Gibson  Mine  in  Aspen,  Col.,  15. — W.  Cross.  Post-Laramie 
Deposits  of  Colorado,  19. — N.  H.  Darton.  Fossils  in  the  1  Archaean’ 
rocks  of  Central  Piedmont,  Virginia,  50. — C.  D.  Walcott.  Notes  on  the 
Cambrian  Rocks  of  Virginia  and  the  Southern  Appalachians,  52. — C. 
Ludeking.  Synthesis  of  the  Minerals  Crocoite  and  Phoenicochroite,  57. — 
R.  S.  Tarr.  A  Hint  with  respect  to  the  Origin  of  Terraces  in  Glaciated 
Regions,  59. — E.  Orton.  Occurrence  of  a  Quartz  Boulder  in  the  Sharon 
Coal  of  North-eastern  Ohio,  62. — W.  Lindgren.  Gold  Deposit  at  Pine 
Hill,  California,  92. — W.  Cross  and  L.  G.  Eakins.  New  occurrence  of 
Ptilolite,  96. — F.  W.  Clarke.  Note  on  the  Constitution  of  Ptilolite  and 
Mordenite,  101. — J.  F.  Kemp.  Great  Shear-zone  near  Avalanche  Lake  in 
the  Adirondacks,  109. — H.  L.  Wells  and  S.  L.  Penfield.  Herderite  from 
Hebron,  Maine,  114. — C.  E.  Beecher.  Development  of  the  Brachiopoda, 
Part  II.,  133. — H.  L.  Preston.  Preliminary  Note  of  a  New  Meteorite 
from  Kenton  County,  Kentucky,  163. — J.  D.  Dana.  Additional  observa¬ 
tions  on  the  Jura-Trias  trap  of  the  New  Haven  Region,  165. — 0.  C. 
Marsh.  Notes  on  Mesozoic  Vertebrate  Fossils,  171. — W.  J.  McGee. 
The  Gulf  of  Mexico  as  a  Measure  of  Isostasy,  177. — S.  E.  Bishop.  Kilauea 
in  April,  1892,  207. — C.  S.  Prosser.  The  Devonian  System  of  Eastern 
Pennsylvania,  210. — A.  E.  Barlow.  Relations  of  the  Laurentiau  and 
Lluronian  on  the  North  Side  of  Lake  Huron,  236. — C.  Barus  and  J.  P. 
Iddings.  Note  on  the  Change  of  Electric  Conductivity  observed  in  Rock 
Magmas  of  different  composition  on  passing  from  liquid  to  solid,  242. 
- .  - .  - .  - .  Nos.  263  and  264.  1892. 
G.  F.  Wright.  Unity  of  the  Glacial  Epoch,  351. — F.  A.  Genth. 
Contributions  to  Mineralogy,  No.  54,  381. — II.  L.  Preston.  Note  on  the 
Farmington,  Washington  County,  Meteorite,  400. — H.  Wood.  A  Note 
on  the  Cretaceous  of  North-western  Montana,  401. — R.  T.  Hill.  The 
Deep  Artesian  Boring  at  Galveston,  Texas,  406. — C.  E.  Beecher  and 
J.  M.  Clarke.  Notice  of  a  new  Lower  Oriskany  Fauna  in  Columbia 
County,  New  York,  410. — E.  E.  Howell.  Description  of  the  Mount  Jov 
Meteorite,  415. — C.  R.  Keyes.  Remarkable  Fauna  at  the  Base  of  the 
Burlington  Limestone  in  North-eastern  Missouri,  447. — H.  W.  Turner. 
Glacial  Pot-holes  in  California,  453.— H.  W.  Turner.  Lavas  of  Mount 
Ingalls,  California,  455. — C.  D.  Walcott.  Notes  on  the  Cambrian  Rocks 
of  Pennsylvania  and  Maryland  from  the  Susquehanna  to  the  Potomac, 
469. — G.  H.  Williams.  Volcanic  Rocks  of  South  Mountain  in  Pennsyl¬ 
vania  and  Maryland,  482. 
- ,  - .  - .  Yol.  xlv.  Nos.  265-270.  1893. 
Clarence  King.  The  Age  of  the  Earth,  1. — G.  D.  Harris.  Tertiary 
Geology  of  Cafvert  Cliffs,  Maryland,  21. — F.  A.  Genth.  ‘  Anglesite  ’ 
associated  with  Boleite,  32. — J.  C.  Graham.  Some  Experiments  with  an 
Artificial  Geyser,  54. — A.  E.  Foote.  Preliminary  Notice  of  a  Meteoric 
Stone  seen  to  fall  at  Bath,  South  Dakota,  64. — O.  C.  Marsh.  A  New 
Cretaceous  Bird  allied  to  Hesperornis,  81.— O.  C.  Marsh.  The  Skull  and 
Brain  of  Claosaurus,  83. — L.  V.  Pirsson.  Datolite  from  Loughboro, 
