Table 27. 



AREAS OF QUADRILATERALS OF EARTH'S SURFACE OF 30' EXTENT IN 

 ^ LATITUDE AND LONGITUDE. 



[Derivation of table explained on pp. 1-Iii.] 



Middle latitude Area in 

 of quadrilateral, square miles. 



44 00 

 44 IS 



44 30 



44 45 



45 00 

 45 15 

 45 30 

 45 45 



49 00 

 49 15 

 49 30 



49 45 



92S.29 

 925.06 

 921.80 



918-53 



915.25 

 911.94 



908.61 



905.27 



901.91 



898.54 

 895.14 

 89173 



8S8.30 

 884.85 

 881.39 

 877.91 



874.41 



870.90 



867.37 



863.82 



860.25 

 856.67 

 853-07 



849.46 



845.82 



842.18 



838.51 

 834.83 



831-13 



827.42 

 823.68 

 819.94 



816.18 



812.40 



808.60 

 804.79 



800.97 



797-13 



793-27 

 78939 



785.50 

 78 1 .60 

 777.68 

 773-74 



769.79 



765-83 

 761.85 



757-85 



7';3-84 

 749.82 



745-78 

 741.72 



Middle latitude 

 of quadrilateral. 



Area in 

 square miles. 



52° 00' 



64 30 

 64 45 



737-65 



733-57 

 7^9-47 

 725-36 



721.23 

 717.0S 



712-93 

 70S.76 



704-57 

 700-38 



696. 1 6 

 691.94 



687.70 

 683.44 

 679.17 

 674.89 



670.60 

 666.29 

 661.97 

 657.64 



653.29 

 648-93 



644-55 



640. 1 7 



635-77 

 631-36 

 626.93 

 622.49 



618.05 



613-59 

 609. 1 1 

 604.62 



600. 1 3 

 595.62 

 591.09 

 586.56 



58 2.0 1 



577-45 

 572.88 



568.30 



563-71 

 559.11 



554-49 

 549-86 



545-23 

 540-58 



535-92 

 531-25 



526.57 

 521.88 



517.17 

 512.46 



Middle latitude 

 of quadrilateral. 



65° 00' 



65 15 

 65 30 



65 45 



66 00 

 66 5 

 66 30 



66 45 



67 00 

 67 IS 

 67 30 



67 45 



68 00 

 68 IS 

 68 30 



68 45 



69 00 



69 IS 

 69 30 



69 45 



70 00 



70 15 



70 30 



70 45 



71 00 

 71 15 

 71 30 



71 45 



72 00 

 72 15 

 72 30 



72 45 



73 00 

 72, 15 

 73 30 



73 45 



74 00 

 74 IS 

 74 30 



74 45 



75 00 

 75 IS 

 75 30 



75 45 



76 00 

 76 IS 

 76 30 



76 45 



77 00 

 77 IS 

 77 30 

 77 45 



Area in 

 square miles. 



507.74 

 503.01 

 498.26 



493-51 



488.75 

 483-97 

 479.19 

 474.40 



469.60 

 464.78 

 459.96 

 455-13 



450.29 



445-45 

 440.59 



435-72 



430.84 

 425.96 

 421.06 

 416.16 



411.25 

 406.34 

 401.41 

 396-47 



391-53 

 386.58 

 381.62 

 376.65 



371.68 



366.70 

 361.71 

 356-71 



351-71 

 346-69 

 341.68 

 336-65 



331-62 

 326.58 



321-53 

 316-48 



311-42 

 306.36 

 301.28 

 296.21 



291.12 

 286.04 

 280.94 

 275-84 



270.73 

 265.62 



260.50 

 255-38 



Smithsonian Tables. 



147 



