warman.]  BULLETINS.  47 
169.  A  It  Ltudes in  Alaska,  compiled  by  Henry  Gannett.  1900.  13  pp.  Price, 
5  cents. 
170.  Survey  of  the  boundary  line  between  Idaho  and  Montana  from  the  inter- 
national boundary  to  the  crest  of  the  Bitterroot  Mountains,  by  Richard  Urqu- 
hartGoode.     1900.     67  pp.,  14  pis.     Price,  15  cents. 
171.  Boundaries  of  the  United  States  and  of  the  several  States  and  Territories, 
with  an  outline  of  the  history  of  all  important  changes  of  territory  (second  edi- 
tion), by  Henry  Gannett.     1900.     142  pp.,  53  pis.     Price,  30  cents. 
172.  Bibliography  and  index  of  North  American  geology,  paleontology,  petrol- 
ogy, and  mineralogy  for  the  year  1S99,  by  Fred  Boughton  Weeks.  1900.  141 
j>l>.     Price,  15  cents. 
L73.  A  synopsis  of  American  fossil  Bryozoa,  including  bibliography  and 
synonyma,  by  John  M.  Nickles  and  Ray  S.  Bassler.  1900.  663  pp.  Price,  40 
cents. 
174.  Survey  of  the  northwestern  boundary  of  the  United  States,  1857-1861,  by 
Marcus  Baker.     1900.     78  pp.,  1  pi.  (map).     Price,  10  cents. 
175.  Triangulation  and  spirit  leveling  in  Indian  Territory,  by  C.  H.  Fitch. 
1900.      141  pp.,  1  pi.   (map).     Price,  10  cents. 
L76.  Some  principles  and  methods  of  nick  analysis,  by  William  Francis  Hille- 
brand.     1900.     114  pp.     Price,  15  cents. 
