SERIES B. ZONE 10. LAT. 40° TO 45° N. 



267 



(Nos. 56 to 58.) Colorado, north of latitude 40°. 



Observed by Post Surgeons at the following military posts, viz. : 



Fort Morgan, for an aggregate period of 25 months, in the years ISOT, 1868 and 1869. 

 Fort Sedgwick, for an aggregate period of 29 months, in the years 1867, 1868 and 1869. 









Eelative Prevalekch 



F Winds feom the 







Mo 





— 











DirFEHENT Points of the Compass. 







If 



infli 



ences. 







W" 





W 





^ 





!^ 











Place of 





Time of the 





n,*i 





i)^ 















£0 









w 



observatio 



ua. 



year. 





H^ 





t-oa 





oOJ 





n^ 



P.3 



resultant. 



■^Fi 



Direction. 

















































^ 





w 





03 



^1 



$■ 



^1 









pj'^ 







£ 



i. 





r 



Spring 



36 



95| 124 



107 



50 



67 



71 



95 



90 



S. 88° 6'E. 



.11 



N. 16° 



W 



13 



245 



56. 



1 



Bummer 



88 



8 127 



110 



149 



29 



37 



34 



20 



S. 35 40 E. 



.40 



S. 24 



K 



'>.?. 



184 



Fort 



\ 



Autumn 



85 



24; 93 



125 



36 



32 



68 



17 



26 



S. 49 17 E. 



.28 



S. 51 



R 



09 



152 



Morgan. 





Winter 



14 



42 157 



90 



12 



41 



147 



91 



42 



N. 71 10 E. 



.02 



N. 43 



W 



18 



212 





f 



Tlie year2 

 Spring 



"26 



109 



40 



106 



"44 



i'31 



"63 



189 



"27 



S. 48 3S E. 

 N. 75 31 W. 



.19 

 .14 





'k 



03 



793 



245 



N. 73 



57. 





Summer 



85 



102 



39 



184 



103 



116 



69 



109 



28 



S. 13 5 W. 



.13 



S. 42 



R 



.21 



245 



Fort 



.j Autumn 



5b 



74 



24 



76 



88 



89 



100 



lis 



65 



N. 72 46 W. 



.19 



N. 27 



W 



03J- 



213 



Sedgwick. 



Winter 

 Tlie year2 

 C Spring 



84 



44 



19 



41 



45 



46 



106 



168 



49 N. (16 32 W. 



..35 



N. 53 



w. 



19 



184 



58. 



"62 



204 



164 



213 



'94 



198 



134 



284 



... ,N. 81 29 W. 

 117 N. .35 23 W. 



.17 



.02 





E. 



.06 



887 

 490 



N. 11 



1 Summer 



78 



110 166 



244 



252 



145 



106 



143 



48 S. 21 29 E. 



.23 



S. 28 



E. 



.20 



429 



eastern 



•{ Autumn 



9U 



98j 117 



201 



74 



121 



168 



135 



91, S. 23 18 W. 



.05 



S. 69 



E. 



.04 



365 



Winter 



48 



86 176 



131 



57 



87 



253 



259 



91 N. 64 39 W. 



.16 



N. 47^ W. 



.16* 



396 





I. The year2 



t 

















... S. 27 6 W. 



.05 









1680 





' Fort.? Morgan a 



ndSt 



dgwiok. 





^ Computed from the resultants for the seasons. 





(Nos. 59 to 62.) Dakotah, south of latitude 45°. 



Observed at the following places, viz. : — , 



^ort Dakota, by Post Surgeons, for an aggregate period of 10 montlis, in the years 1866, 1868 

 and 1869. 



Fort Pierre, by Post Surgeons, for an aggregate period of 21 months, in the years 1855, 1856 

 and 1857; also by M. C. Rosseau, for an aggregate period of 8 months, in the years 1860 and 

 1861 



Fori Randall, by Post Surgeons, for an aggregate period of nearly 12 years, in the years 1856 to 

 1869 inclusive. 



Fort Sully, by Post Surgeons, for an aggregate period of 19 months, in the years 1866, 1868 and 

 1869. 



Greenwood, by F. Norvell, from November, 1859, to May, 1861, and 4 months ia 1862. 



Yankton, by S. D. Hill, during the month of March, 1860. 









Relative Prevalence of Winds from the 







Monsoon 











Different Points of the Compass. 







influences. 



t 





.^ 



H 





^ 





,^" 







Place of 





Time of the 





OJi 



0^ 





^■^ 





.Sji <j 



Direction of 



^'q 







(M 



observations. 



year. 





gfe 



t.« 





3« 





= ^ o? 



resultant. 



oS 



Direction. 





s 











ws tj 



mS 



J5 



^S 



% 



&'i es 





5 ^ 





g 



a 



















^ 



















^ 



•it ! w 



mC 



m 



^iC 



fe.2 1 D 1 



K 





'^ 



a 





' 



Spring 



168 



106 



135 



205 



481 351 99 



219 



28 N. 22°5S'E. 



.19 



N. 7° E. 



.08 



348 



69. 



Summer 



29 



30 



75 



144 



281 15 



18 



80 



4S. 73 24 E. 



.28 



S. 49| E. 



.27 



153 



Fort 





Autumn 



35 



80 



SO 



116 



64! 74 



81 



147 



22iS. 81 21 W. 



.03 



S. 45 W. 



.lU 



243 



Pierre. 





Winter 

 The year' 



111 



78 



107 



52 



37: 38 



73 



199 



25 N. 11 25 W. .29 

 ... N. 34 13 E. .lU 



N. 32i W. 



.22* 



240 

 984 



' Computed from the resultants for the seasons. 



