APPENDIX B 



LXXV 



Summary of Results of Magnetic Observations Made at 

 Meanook During the Fiscal Year 1921-22 



Month 



1921 



April 



May 



June 



July 



August 



September 



October , 



r^dveniber 



December 



1922 



January 



February 



March 



Mean Monthly Values 



D East 



27 



34.9 

 33.5 

 33.5 

 31.9 

 31.6 

 31.3 

 30.7 

 31.4 

 30.8 



31.8 

 32.4 

 30.1 



H 



7 

 12901 

 896 

 908 

 910 

 902 

 903 

 896 

 910 

 908 



908 

 920 

 890 



7 

 60109 

 172 

 202 

 186 

 123 

 213 

 189 

 245 

 142 



176 

 189 

 115 



77 



53.9 

 54.2 

 53.9 

 53.6 

 53.3 

 54.3 

 54.4 

 54.3 

 53.2 



53.6 

 53.1 

 53.7 



Meanook Daily and Monthly Ranges of D 



Month 



1921 



April 



May 



June 



July 



August 



September 



October 



November 



December 



1922 



January , 



February 



March 



From hourly 

 readings 



13.7 



17.7 



16.2 



15.0 



14.9 



13.0 



9.4 



7.5 



5.9 



5.3 



7.1 



11.8 



From Max. 

 and Min. 



48.3 

 73.6 

 26.4 

 28.6 

 33.5 

 39.0 

 39.2 

 27.9 

 31.7 



31.1 



49.8 

 50.5 



Absolute 



Monthly 



range 



3 

 6 

 1 

 1 

 2 

 3 

 3 

 2 

 2 



56.9 

 16.2 

 07.1 

 31.3 

 57.0 

 43.0 

 57.2 

 12.9 

 12.0 



2 26.6 

 4 21.3 



3 59.1 



