('barter 



Office of tlic Chief Sig-ital Officer, 



VXITBI) ST A TES ARMY 

 rrom Actnal Oburvallon. lakcn SimaKancoi.siy. serl«. romnicnclnr N*i>t«mb«r. IM7. 



PUBUSHED B. „„0g„ „p ^„, ,«;„„*«,• OF WAB 



»RIO. OEN. ,BVT, ^esOD. CHILF SIGNAL OPFICBR „. «. a. 



"■^r.\-"-™rrr'' ^'''"'^^^ ^""^ 



^■^ i M.. W..h„,^,„„ „.„„ t.^^l'i^" «^" '"i;'^'- "-' prevailing auction of wind, 

 on th,. dull, chart, ot tho In„.T,„ , ^V^™^<". 1878, based 

 "IP intiTnntlonal Bulletin 



/ ''"' 



IS0B4BS ANI> ISOTHEBMS. 



in Fn^nTiw ''T-' """"■""' "•■"■<""'•"•■ mean> 

 in f.iiiriuh inches. 



J'T^TT '" '■"'■ "-'«'"" t^mpp.aiuve 

 meftn» in dfKre.s Pahivnhoii. 



