280 



Comparison of Gauss's Theory of 



Table II. 



PLACES. 



VARIATION. 



I 



DIP. 



INTENSITY. 



Gauss. 



Toronto, 



Buffalo, 



Detroit, 



Cleveland, 



Sandusky, 



Kinsman, 



Bedford, 



Hartford, 



Basetta, 



Aurora, 



Twinsburgh, 



Warren, 



Windham, 



Shalersville, 



Streetsboro, 



Hudson, 



Tallmadge, 



Clinton, 



Fulion, 



Beaver, 



Dover, 



Pittsburgh, 



Frasersburgh, 



Hebron, 



Loom is. I Dili. I Gauss. 



2 12,75 

 1 42,75 



/ 



Loom is. I Diff. IGauss. Obs. | Dirt' 



a 



48-5 75 

 210 74 



34-8,73 

 4 73 



58-172 



8-4173 



0-273 



2273 



1273 



58-172 



57-672 



57-8173 



18 9+29- 



1 25 73 

 123 73 

 1 22 73 

 127173 

 1 22 73 



1 19 



1 19 

 140 



52 

 144 



1 9 

 56 



73 

 73 



55-872 

 54972 

 54-372 

 53-772 

 46672 

 39-0 72 

 36-8 72 

 34-872 



T3 



73 1 9-8 72 



73 

 72 

 72 



27-2 72 

 56 871 



46* 



y71 



47-2 



35-7 



40 



531 



145 



0-3 



67 



4-8 



59 

 57-7 



0-5 

 57-2 

 55-5 

 54-2 



532 

 45] 



35-4 



330 



361 

 14-6 

 29-1 

 46-2 

 33-4 



33-8 



591 



60 



650 

 53-9 

 59-9 

 55-5 

 56 4 

 591 



59 9 

 57-3 



58-6 

 594 



60 1 



60-5 

 615 



636 



63-8 

 58 7 

 65-2 

 581 

 70-6 

 +731 



1-7185 

 17143 

 17173 



1 -7103 



1-7120 



1-7084 



1 • 7094 



1-7076 



1-7078 



1-7087 



1-7088 



1-7075 



1-7077 



1 • 7080 



1-7081 ' 



1-7083 



1 -7073 



1 -7067 



I ■ 7063 



1-7032 



1 -7034 



1-7012 



1-7013 



1 7005 



1-8070 —0-0987 



Table III. 



PLACES. 



VARIATION. 



DIP. 



i.auss. Loomis. I Diff. IGauss. Loumis. 



Gros Cap, 

 Fort Brady, 

 Mackinac, 



South Manitou 

 Ann Arbor, 

 Ypsilanti, 

 Monroe, 

 Toledo, 



Maumee, 



Piqua, i 



Urban n a, 



Columbus, 



Springfield, 

 Dayton, 



Lebanon, 



Hamilton, 



Mason, 



Cincinnati, 



Will'mstown, 



Louisville, 



Frankfort, 



Lexington, 



Clay's Ferry, 



§13 



2 59 



3 25 



4 18 

 3 37 

 3 35 

 3 32 

 3 39 



3 45 



4 2-") 

 4 9 



3 39 



4 13 

 4 27 

 4 31 

 4 36 

 4 3"> 

 4 46 



4 52 



5 29 

 5 1 

 4 51 

 •4 53 



52 

 2 42 



2 20* 



3 54 

 2 41 

 2 38 

 2 33 

 2 42 



2 50 



3 58 



3 32 



2 59 



4 23* 



3 58 



4 9 



4 24 

 4 10 

 4 55* 



4 48 



5 29 

 4 52 

 4 38 

 4 40 



7> 



16'o 



25-o 



32-7 77 

 4176 

 •5 76 

 30 7 73 

 28073 

 14 4 73 

 2-972 

 56 6 72 

 41-571 

 42-4 71 

 41-571 

 33-871 

 24 671 



8 670 



31170 



4-570 



49-3 70 



23470 



59-8 70 



3 369 



59 069 



47 7 69 



13 6 



39-7 



0-9 



29-4 



25-8 



86 



56-3 



504 



339 



302 



236 



21 4 



151 



58-4 



566 



55-1 



414 



150 



1-4 



55 9 



48-1 



+16711 



1911 

 24 411 



24 6J1 

 613 1 

 6221 



65 8 1 



66 61 



66 21 



67 61 

 7221 

 77-91 



7241 



69-51 



70 21 



66-51 



69-411 



67-9 



68-4)1 



58-41 



67-41 



7404 

 •7397 



•7376 



•7355 

 •7179 

 7174 



7151 

 7137 



7130 



•7030 



■7021 

 •7007 



■7009 



•7001 



■6975 



•6974 



•697H 



•6950 



•6903. 

 ■688.". 1-7518 



■6874 







1-7407 -00457 



_0-0633 



70-931 



6860 



36 614-71 -1|1 6840 



i 



