van  hisk.]  EASTERN    UNITED    STATES.  433 
etc.,  and  on  depth  of  decomposition  of  rocks  at  Dahlonega,  Georgia,  C.T.Jackson. 
Proc.  Bost.  Soc.  Nat.  Hist.,  vol.  VII,  pp.  354;  see  also  Alteration  in  Roxbury  Conglom- 
erate and  that  of  Rhode  Island.     Ibid.,  vol.  ix,  pp.  57. 
72  Geology  of  the  Island  of  Aquidneck,  Charles  H,  Hitchcock.  Proc.  Am.  Assoc. 
Adv.  Sci.,  14th  meeting,  1861,  pp.  112-137. 
73  A  Contribution  to  the  Geology  of  Rhode  Island,  T.  Nelson  Dale.  Proc.  Bost.  Soc. 
Nat.  Hist.,  vol.  xxn,  1882-'83,  pp.  179-201 ;  with  plates. 
74  Sketches  of  a  tour  in  the  counties  of  New  Haven  and  Litchfield,  in  Connecticut, 
with  notices  of  the  Geology,  Mineralogy,  and  Scenery,  etc.,  Benjamin  Silliman.  Am. 
Jour.  Sci.,lst  ser.,  vol.  n,  pp.  201-235. 
75  Geological  Notices,  W.  W.  Mather.     Ibid.,  vol.  xxi,  pp.  94-99;  with  section. 
76  Sketch  of  the  Geology  and  Mineralogy,  of  New  London  and  Windham  Counties, 
Connecticut,  Wm.  W.  Mather.     Norwich,  1834,  pp.  36,  and  a  map. 
77  Report  on  the  Geology  of  the  State  of  Connecticut,  James  G.  Pereival.  New 
Haven,  1842,  pp.  495,  and  a  map. 
78 Green  Mountain  Geology.  On  the  t^uartzite,  James  D.Dana.  Am.  Jour.  Sci., 
3d  ser.,  vol.  in,  pp.  179-186,  250-256. 
79  On  the  Relations  of  the  Geology  of  Vermont  to  that  of  Berkshire,  James  D.  Dana. 
Ibid,  vol.  xiv,  pp.  37-48, 132-140,  202-207,  257-264. 
8uTke  Atlantic  System  of  Mountains,  C.  H.  Hitchcock.  Appalachia,  vol.  i,  pp. 
11-14  (abstract). 
81  Note  on  the  Age  of  the  Green  Mountains,  James  D.  Dana.  Am.  Jour.  Sci.,  3d  ser., 
vol.  xix,  pp.  191-200. 
82  On  the  Southward  Ending  of  a  Great  Synclinal  in  the  Taconic  Range,  James  D. 
Dana.     Ibid.,  vol.  xxvin,  pp.  268-275 ;  with  a  map. 
83  Geological  Sections  across  New  Hampshire  and  Vermont,  C.  H.  Hitchcock.  Bull. 
No.  5,  Am.  Mus.  Nat.  Hist.,  pp.  155-179;  Avith  a  map  and  2  plates. 
84  The  Geology  of  Northern  New  England,  C.  H.  Hitchcock ;  pp.  1-5,  1-17. 
85  Second  Contribution  to  the  Studies  of  the  Cambrian  Faunas  of  North  America,  C. 
D.  Walcott.  Bull.  U.  S.  Geol.  Survey,  No.  30,  pp.  369,  33  plates.  See  also  the  Cambrian 
System  in  the  United  States  and  Canada.  Bull.  Phil.  Soc,  Washington,  vol.  vi,  pp. 
98-102. 
s6The  Taconic  System  of  Emmons,  and  the  use  of  the  name  Taconic  in  Geologic 
Nomenclature,  Charles  D.  Walcott.  Am.  Jour.  Sci.,  3d  ser.,  vol.  xxxv,  1888,  pp. 
229-242,307-327,  394-401;  Avith  plate. 
87  Stratigraphic  Position  of  the  Olenellus  Fauna  in  North  America  and  Europe,  0. 
D.  Walcott.     Idid.,  vol.  xxxvn,  pp.  374-392 ;  vol.  xxx vin,  pp.  29-42. 
88DiscoArery  of  native  crystallized  carbonate  of  magnesia  on  Staten  Island,  with  a 
notice  of  the  geology  and  mineralogy  of  that  island,  James  Pierce.  Am.  Jour.  Sci., 
1st  ser.,  vol.  i,  1818,  pp.  142-146. 
81  An  Essay  on  the  geology  of  the  Hudson  River,  and  the  adjacent  regions,  Samuel 
Akerly.     New  York,  1820,  pp.  69;  with  a  section. 
•^Geological  and  Mineralogical  notice  of  a  portion  of  the  northeastern  part  of  the 
State  of  New  York,  Augustus  E.  Jessup.  Journal  Philadelphia  Acad.  Sci.,  vol.  ir, 
pp. 185-191. 
91  An  Outline  of  the  Geology  of  the  Highlands  on  the  River  Hudson,  Prof.  Amos 
Eaton.    Am.  Jour.  Sci.,  1st  ser.,  vol.  v,  1822,  pp.  231-235. 
92  A  Geological  and  Agricultural  Survey  of  the  District  adjoining  the  Erie  Canal,in 
the  State  of  New  York,  Amos  Eaton.  Albany,  1824,  pp.  157;  with  a  geological  pro- 
file. 
93  First  annual  report  of  the  second  geological  district  of  New  York,  Ebenezer 
Emmons.     First  Ann.  Rept.  Geol.  Survey  of  New  York,  pp.  97-150,  and  a  map. 
94 First  annual  report  of  the  geological  survey  of  the  third  district  of  New  York, 
T.  A.  Conrad.     Ibid.,  pp.  155-186, 
Bull.  86 28 
