16  PUBLICATIONS    OF    U.    S.    GEOLOGICAL    SURVEY.         [bull.  177. 
Thirteenth  Annual  Report  of  the  United  States  Geological  Survey 
to  the  Secretary  of  the  Interior  1891-'92  by  J.  W.  Powell  Director 
In  three  parts  Part  I — Report  of  the  Director  [Part  II — Geology; 
Part  III — Irrigation]  [Vignette]  Washington  Government  Print- 
ing Office     1892     [Pts.  II  and  III,  1893] 
8°.     3  pts.     vii,  240  pp.,  2  maps;  x,  372  pp.  and  22  unnumbered  leaves,  107  pis.  and 
maps;  xi,  486  pp.,  108-184  pis.  and  maps.     Bound  in  dark  maroon  cloth  (Survey 
edition) .     Out  of  stock.     Separates  of  the  various  papers  were  issued,  in  paper  covers. 
Pt.      1.  Director's  report  and  reports  of  chiefs  of  divisions,     vii,  240  pp.,  2  maps. 
Report  of  the  Director,  pp.  3-66,  pis.  i,  ii  (maps). 
Administrative  reports  of  chiefs  of  divisions,  pp.  67-235. 
Index,  pp.  237-240. 
Pt.    II.  Geology,     x,  372  pp.  and  22  unnumbered  leaves,  107  pis.  and  maps. 
Second  expedition  to  Mount  St.  Elias,  in  1891,  by  Israel  C.  Russell,  pp. 
1-91,  pis.  iii-xxi. 
The  geological  history  of  harbors,  by  Nathaniel  Southgate  Shaler,  pp.  93- 
209,  pis.  xxii-xlv. 
The  mechanics  of  Appalachian  structure,  by  Bailey  Willis,  pp.  211-281 
and  22  unnumbered  leaves,  pis.  xlvi-xcvi. 
The  average  elevation  of  the  United  States,  by  Henry  Gannett,  pp.  283- 
289,  pi.  cvii  (in  pocket). 
The  Rensselaer  grit  plateau  in  New  York,  by  T.  Nelson  Dale,  pp.  291-340, 
pis.  xcvii-ci. 
The  American  Tertiary  Aphida?,  with  a  list  of  the  known  species  and 
tables  for  their  determination,  by  Samuel  Hubbard  Scudder,  pp.  341- 
366,  pis.  cii-cvi. 
Index,  pp.  367-372. 
Pt.  III.  Irrigation,     xi,  486  pp.,  108-184  pis.  and  maps. 
Water  supply  for  irrigation,  by  Frederick  Haynes  Newell,  pp.  1-99,  pis. 
cviii-cx. 
American  irrigation  engineering,  by  Herbert  M.  AVilson,  C.  E.,pp.  101- 
349,  pis.  cxi-cxlvi. 
Engineering  results  of  irrigation  survey,  by  Herbert  M.  Wilson,  pp.  351- 
427,  pis.  cxlvii-clxxxii. 
Report  upon  the  construction  of  topographic  maps  and  the  selection  and 
survey  of  reservoir  sites  in  the  hydrographic  basin  of  the  Arkansas 
River,  Colorado,  by  A.  H.  Thompson,  pp.  429-444. 
Report  upon  the  location  and  survey  of  reservoir  sites  during  the  fiscal 
year  ending  June  30,  1892,  by  A.  H.  Thompson,  pp.  445-478,    pis. 
clxxxiii,  clxxxiv. 
Index,  pp.  479-486. 
Fourteenth  Annual  Report  of  the  United  States  Geological  Survey 
to  the  Secretary  of  the  Interior  1892-'93  by  J.  W.  Powell  Director 
Part  I — Report  of  the  Director  [-II — Accompanying  papers]  [Vi- 
gnette] Washington  Government  Printing  Office  1893  [Pt.  II, 
1891] 
8°.  2  pts.  321  pp.,  1  map;  xx,  597  pp.,  74  pis.  and  maps.  Bound  in  dark  maroon 
cloth  (Survey  edition) .  Out  of  stock.  Separates  of  the  various  papers  were  issued,  in 
paper  covers. 
Pt.    I.  Director's  report  and  reports  of  chiefs  of  divisions.     321  pp.,  1  map. 
Report  of  the  Director,  pp.  3-165,  1  map  (in  pocket). 
