THE POPULATION OF COLORADO 209 
plained by the great demand for manual labor caused by the enormous 
material development. The following table shows the railroad build- 
ing of the state by decades. 
NATIVITY OF FOREIGN BoRN IN COLORADO, 1860-1900, BY PRINCIPAL COUNTRIES 
Countries 1860* 1870T 1880t 1890§ rg00¥* 
Brigish Americas ca)! 305 2h: «6 684 664 59785 9,142 8,837 
Tipe ratte Lehi QUA Ree, er tras 624 1,685 8,263 12,352 10,132 
Bnmlanee est aera the stole erat: ano 1,358 8,797 14,406 13,575 
Scatkadariy scsi pares 120 188 1,673 4,339 4,069 
BANG ysis ey erasers he seeks carters 103 209 825 1,32 1,162 
IGEEMANY Ssiicccidnie lect tscioe 576 1,456 7,012 15,151 14,606 
Wales thas neice sisciseneri oes 38 165 1,212 2,082 T,955 
Swegenw ie ias!tcc occ donde 27 180 2,172 9,659 10,765 
INEEXTCO Mt sisiereistine aioe cies 25 126 186 607 274 
Switzerland] 2 yas sis: clo selena 25 I40 551 T2255 14,79 
EP earn ay revs sia hates cote) abelian 16 17 II5 192 260 
iDicistaetchil <Q Shenoipen MG tains 16 77 507 1,650 2,050 
IN@EWAY cca sizisie ss slo eyeist elas 12 40 354 893 1,149 
talents fe: - Srvaupebensterseyaes) wats eid 16 335 3,882 6,818 
Olas sist elapayetensts se tve bal bse 49 154 - 242 465 
RUSSIA Hise sc) heli ba aki e hate ee Io 278 1,306 2,938 
PANES UTI cists sc disse avers ste Soccer sv ae ar 453 2,700 6,024 
AB ara aes eee ae Sra yers heat alters ahs Sp opens 601 1,447 581 
Hungary.......-...+.+-+.-. pee Brite SEEK 359 574 
Bonen aie a Seok is zis eres ae as sents Atha 212 330 
MSGMOTUTAN Yess plavatuii s aiey 4 spohels Bae ABEL tack 136 170 
SOALIMN Hates leisdetsi ols aelereclevays se kate Aes 50 41 
Rortuoaleci iso 4 i eroie,syare ates tie wate Some 28 28 
(Gareeeee et Lo BMicS bono nies cole oye Sele aioe 27 37 
ATS stor piclerels terete <iier dy afere HIE dere 13 51 
* Census, 1860, Population, p. 549. § Census, 1890, Population, Pt. I, p. 608. 
7 Ibid., 1870, p. 338. ** Tbid., 1900, P. 732. 
t Ibid., 1880, p. 492. 
MILEs OF RAILROAD IN OPERATION IN COLORADO By DECADES* 
iSO Lettie! BEML econ sO: hic.» Oye PDO Ont pi ° 
dite fo) A reaar ten ci at cen Vedas, arse dal a nas 157 
TOSOM ES) A ae EE PRE EN \\ tsp ky 5 7 O 
TOOO tabs hvaiy ah ee RE ounce, As aO 
TOOO Vip) ail yo -~,s Leee 
* Statistical Atlas of the United States, 1905, p. 551- 
Between 1880 and 1890, 2,721 miles of railroad were built, great 
mining development was in progress and. building in cities was proceed- 
ing rapidly. During this period Denver increased in population from 
35,029 to 106,713 and Pueblo from 3,217 to 24,558. There was general 
opportunity for work and therefore an encouragement to foreign 
immigration. 
4,049 
