178 DISCUSSION OF THE ANNUAL FLUCTUATION 



ANNUAL FLUCTUATION 



Long. 

 W.ofGr 



Height. 



Extent 



of 

 Series. 



UNITED STATES EAST OF THE 88th MERIDIAN. 



Fort Brady, Michigan 



Fort Snelling (St. Paul), Minnesota 



Dennysville, Maine 



Burlington, Vermont 



Brunswick, Maine 



Milwaukee, Wisconsin . . 

 Penn Yan, New York . . 

 Detroit, Michigan . . . 

 New Bedford, Massachusetts 

 Muscatine, Iowa .... 



New Haven, Connecticut .... 



Marietta, Ohio 



Fort Leavenworth, Kansas .... 

 Fort McHenry, Baltimore, Maryland 

 Cincinnati, Ohio 



St. Louis, Missouri .... 

 Chapel Hill, North Carolina . 

 Fort Gibson, Indian Territory . 

 Columbus, Mississippi . . . 

 Fort Moultrie, Charleston, S. C. 



Fort Barrancas, Pensacola, Florida . 



Austin, Texas 



New Orleans, Louisiana . . . . 

 Fort Marion, St. Augustine, Florida . 

 Fort Brown, Texas 



Key West, Florida 



46°3o' 

 44 53 

 44 53 



44 28 

 43 54 



43 C'4 

 42 42 

 42 20 



41 39 

 41 26 



41 j8 

 39 28 

 39 21 

 39 16 

 39 06 



38 37 

 35 58 

 35 48 

 33 31 

 32 45 



30 21 



30 17 

 29 56 



29 54 

 25 50 



24 33 



84°28' 



93 10 

 67 14 

 73 '2 



69 57 



88 00 



77 04 



83 03 



70 56 

 91 05 



72 57 

 Si 26 



94 54 

 76 35 



84 30 



90 12 



78 54 



95 20 

 88 28 



79 51 



87 18 

 97 44 

 90 03* 

 81 19 

 97 37 



Si 48 



feet. 

 600 

 820 



346 



74 



604 

 740 



597 

 90 

 585 



45 

 670 

 896 



36 

 540 



5(10 



227 



25 



650 

 25 

 25 

 50 



yrs. mos 

 32 1 



42 2 



40 O 



29 6 



5' 3 



26 7 

 31 o 

 30 3 

 58 I 



27 6 



29 10 

 15 9 

 32 II 



40°. 22 



24.70 



44-23 



30-14 



42.25 



23.72 



44-52 



25.95 



44-50 



23-31 



45.84 



23.84 



45-51 



22.79 



47-33 



22.79 



48-30 



21.16 



47.08 



25.60 



49.10 



22.90 



52-33 



21.40 



52-84 



25.21 



54-59 



22.39 



54.80 



22,79 



55-09 



23.94 



59-83 



1S.S7 



60.56 



21.48 



62.25 



1S.57 



66.43 



16.15 



68.44 



15.10 



66.78 



16.91 



69.12 



14. II 



69-73 



1-2.33 



73-74 



12.04 



77.08 



7.31 



247°is 

 254 37 



247 16 



249 33 

 24S 45 



248 24 



250 33 

 250 36 

 245 20 



253 53 



249 25 



254 25 

 254 52 



249 57 

 254 12 



254 56 



253 52 



254 55 

 256 01 



250 54 



253 16 

 256 36 



255 53 

 248 38 

 255 22 



UNITED STATES WEST OP THE 98th MERIDIAN. 



Fort Stevenson, Dakota .... 



Fort Shaw, Montana 



Astoria, Oregon 



Fort Laramie, Wyoming . . . 

 Salt Lake City, Utah 



Presidio, San Francisco, California 

 Fort Garland, Colorado .... 

 Fort Mojav^, Arizona .... 

 Fort Craig, New Mexico . . . 

 San Diego, California .... 



47 36 



loi 10 





47 30 



III 42 



6000 



46 II 



123 48 



52 



42 12 



104 31 



4472 



40 46 



III 54 



4260 



37 47 



122 28 



150 



37 32 



105 40 



8365 



35 06 



114 35 



604 



3336 



107 00 



4576 



32 42 



117 14 



150 



41.84 



33.82 



46.13 



23.03 



49.22 



10.87 



49.22 



23.63 



51.95 



23.72 



54.80 



4.22 



42.53 



23.65 



': 73.20 



20.95 



60.03 



22.17 



62.14 



S.S8 



253 33 



253 44 

 242 44 

 252 37 

 250 32 



234 55 

 255 09 



254 31 

 259 31 

 239 50 



a Monthly means corrected for daily variation by the general table p. xiv. 



/> Monthly means corrected for daily variation by the Sitka table ; for Astoria allowance was made for change of style. 



c Monthly means corrected for daily variation by the tables for Key West and Fort Morgan. 



