364 
Field  Columbian  Museum — Reports,  Vol.  i. 
late  the  studies  of  the  Curator  in  the  Flora  of  Yucatan.  The  itinerary 
was  made  to  include  Bermuda;  San  Juan,  Caguas,  Ponce  and 
Guanica,  Porto  Rico;  St.  Thomas,  Culebras  Islands,  San  Domingo, 
Jamaica,  Santiago,  Cayman  Brae,  Grand  Cayman,  Isle  of  Pines, 
Cozumel,  Yucatan  and  the  Alacran  Shoals.  Nearly  2,000  sheets  of 
plants  were  secured  and  about  500  negatives  were  obtained  by  the 
photographer  who  accompanied  the  expedition.  A  great  many  notes 
were  taker?,  A  full  report  of  this  trip  of  three  months  is  now  in  course 
of  publication  in  the  Museum  series.  Upon  the  invitation  of  Mr. 
Edward  E.  Ayer,  Mr.  Millspaugh  also  made  a  short  trip  to  Flagstaff, 
Arizona,  and  the  Canon  of  the  Colorado  River.  Although  the  excur- 
sion was  a  hurried  one,  a  large  number  of  interesting  specimens  were 
collected  in  this  region.  Under  appointment  as  Honorary  Special 
Agent  of  the  Department  of  Mines  and  Metallurgy  of  the  United 
States  Commission  to  the  Paris  Exposition  of  1900,  Assistant  Curator 
Nichols  spent  about  six  weeks  during  the  ear)y  summer  in  visiting  the 
zinc  and  lead  mining  regions  of  New  Jersey,  Pennsylvania,  Virginia, 
Tennessee,  Kentucky,  Southern  Illinois,  Missouri,  and  Kansas. 
About  300  specimens  were  thus  collected,  illustrating  the  zinc  and 
lead  ores  of  the  regions  visited,  besides  many  choice  specimens  of  the 
minerals  which  accompany  the  ores.  After  being  exhibited  at  the 
Paris  Exposition,  the  collection  so  obtained  will  become  the  property 
of  the  Museum,  and  will  form  a  valuable  addition  to  the  economic 
collections  now  on  hand.  During  the  month  of  July  an  invitation  was 
extended  by  officials  of  the  Union  Pacific  Railroad  to  the  Curator  and 
assistants  to  join  the  Fossil  Fields  Expedition  to  Wyoming,  then  be- 
ing organized.  While  appreciating  thoroughly  the  courtesy  of  this 
invitation,  it  was  believed  that  larger  results  could  be  secured  by 
spending  the  time  and  funds  available  in  work  at  one  locality.  Ac- 
cordingly, Assistant  Curator  Riggs,  and  H.  W.  Menke  as  photog- 
rapher and  general  assistant,  were  dispatched  to  a  field  near  Medicine 
J3ow,  Wyoming,  where  three  months  were  devoted  to  collecting  fossil 
reptile  remains  in  the  Jurassic  beds  of  that  region.  While  it  is  yet 
too  early  to  judge  accurately  of  the  material  obtained,  there  is  no 
•doubt  that  the  results  will  be  highly  satisfactory  and  that  much  has 
been  secured  along  a  line  hitherto  entirely  unrepresented  in  the 
Museum.  About  five  tons  of  bones  in  the  matrix  have  been  shipped, 
and  a  list  received  from  Mr.  Riggs  quotes  the  following  among  the 
material  collected : 
Femur,  tibia,  scapula,  coracoids,  caudal,  dorsal  and  cervical  ver- 
tebrae, ilium  and  ischium  of  Brontosaurus ;  femur,  scapula,  cervical, 
dorsal,  and  caudal  vertebrae  of  Morosaurus ;  femur,  scapula,  pubis,  25 
