430  PRE-CAMBRIAN    ROCKS    OF    NORTH    AMERICA.  [bull.  86. 
8  The  Geology  of  the  Island  of  Mount  Desert,  Maine,  Nathaniel  Southgate  Shaler. 
Eighth  Ann.  Rept.  U.  S.  Geol.  Survey,  1886-'87,  pp.  987-1061 ;  13  pis. 
0  First  Annual  Report  on  the  Geology  of  New  Hampshire,  Charles  T.  Jackson. 
Concord,  1841,  pp.  164. 
10  Final  Report  on  the  Geology  and  Mineralogy  of  the  State  of  New  Hampshire, 
with  Contributions  toward  the  Improvement  of  Agriculture  and  Metallurgy,  Charles 
T.  Jackson,  pp.  vni,  376;  with  a  map  and  sections. 
11  On  the  Geological  Age  of  the  White  Mountains,  Henry  D.  and  William  B.  Rogers. 
Am.  Jour.  Sci.,  2d  ser.,  vol.  I,  pp.  411-421. 
12  On  the  Geological  Age  of  the  White  Mountains,  Charles  T.  Jackson.  Proc.  Bost. 
Soc.  Nat.  Hist.,  vol.  II,  pp.  147-148. 
13 The  Geology  of  New  Hampshire,  C.  H.  Hitchcock,  State  Geologist;  J.  H.  Hunt- 
ington, Warren  Upham,  G.  W.  Hawes,  assistants;  vol.n,  Concord,  1877,  pp.684;  with 
a  six-sheet  geological  map.  See,  also,  by  C.  H.  Hitchcock,  ibid.,  vol.i,  pp.  667;  with 
maps.  First  Annual  Report  on  the  Geology  and  Mineralogy  of  New  Hampshire, 
Manchester,  1869,  pp.  36,  and  a  map.  Second  Annual  Report  on  the  Geology  and 
Mineralogy  of  New  Hampshire,  Manchester,  1870,  pp.  37;  map.  Report  of  the  Geo- 
logical Survey  of  the  State  of  New  Hampshire,  showing  its  progress  during  the  year 
1870,  Nashua,  1871,  pp.  82.  Report  of  the  Geological  Survey  of  New  Hampshire,  its 
progress  during  1871,  Nashua,  1872,  pp.  56,  and  map.  Norian  Rocks  in  New  Hamp- 
shire; Am.  Jour.  Sci.,  3d  ser.,  vol.  ill,  pp.  43-47.  Recent  Geological  Discoveries 
among  the  White  Mountains,  New  Hampshire.  Proc.  Am.  Assoc.  Adv.  Sci.,  21st 
meeting,  pp.  135-151.  Report  of  the  Geological  Survey  of  the  State  of  New  Hamp- 
shire, showing  its  progress  during  the  year  1872,  pp.  15.  On  the  Classification  of  the 
Rocks  of  New  Hampshire.  Proc.  Bost.  Soc.  Nat.  Hist.,  vol.  xv,  pp.  304-309.  On 
Helderberg  Rocks  in  New  Hampshire.  Am.  Jour.  Sci.,  3d  ser.,  vol.  vn,  1874,  pp. 
468-476,  557-571.     Geology  of  the  White  Mountains,  Appalachia,  vol.  I,  pp.  70-76. 
14  Mineralogy  and  Lithology,  Geo.  W.  Hawes.  Geology  of  New  Hampshire,  vol. 
in,  part  4,  pp.  1-262;  12  plates. 
15  The  Albany  Granite,  New  Hampshire,  and  its  contact  phenomena,  George  W. 
Hawes.     Am.  Jour.  Sci.,  3d  ser.,  vol  xxi,  1881,  pp.  21-32. 
16  Significance  of  Oval  Granitoid  Areas  in  the  Lower  Laurentian,  C.  H.  Hitchcock. 
Bull.  Geol.  Soc.  Am.,  vol.  I,  pp.  557-558  (abstract).     Discussion  by  G.  H.  Williams. 
17  First  Annual  Report  on  the  Geology  of  Vermont,  C.  B.  Adams.  Burlington,  1845, 
pp.  92;  with  a  map. 
18  Second  Annual  Report  on  the  Geology  of  Vermont,  C.  B.  Adams,  Burlington, 
1846,  pp.  267. 
w  Third  Annual  Report  on  the  Geology  of  the  State  of  Vermont,  C.  B.  Adams.  Bur- 
lington, 1847,  pp.  32. 
20  Extract  from  Z.  Thompson's  Address  on  the  Natural  History  of  Vermont.  Pre- 
liminary Report  on  the  Natural  History  of  the  State  of  Vermont,  Augustus  Young, 
Appendix  6,  pp.  65-68. 
21  Report  on  the  Geology  of  Vermont,  Edward  Hitchcock,  vol.  i,  pp.  1-55.  See  also 
Report  on  the  Geological  Survey  of  the  State  of  Vermont,  1858,  pp.  13.  On  the  Con- 
version of  Certain  Conglomerates  into  Talcose  and  Micaceous  Schists  and  Gneiss,  by 
the  Elongation,  Flattening,  and  Metamorphosis  of  the  Pebbles  and  the  Cement.  Am. 
Jour.  Sci.,  2d  ser.,  vol.  xxxi,  pp.  372-392. 
22  Azoic  Rocks,  C.  H.  Hitchcock.  Report  on  the  Geology  of  Vermont,  vol.  I,  pp. 
452-469,  471-474,  533-558. 
2:5  Unstratified  Rocks,  Edward  Hitchcock.     Ibid.,  vol.  ir,  pp.  559-578. 
24  Dikes  of  Chittenden  County,  Prof.  Thompson.     Ibid.,  vol.  II,  pp.  579-594. 
25 Notes  on  the  Sections,  C.  H.  Hitchcock.     Ibid.,  vol.  u,  pp.  595-682. 
26  Report  relating  to  the  Geology  of  Northern  Vermont,  S.  R.  Hall.     Ibid.,  vol.  II, 
pp.  719-730, 
