1904.] Short- Period Atmospheric Pressure Variation. 



Types — continued. 



463 



Mcmths in which types are 

 most conspicuous. 



Source of data. 



General remarks. 



Nov. — Feb. 



Oct.— Mar. 

 Nov. — Mar, 

 Sept.— Feb. 

 Nov. — Apr. 

 (Mar. — Aug.) 

 Apr. — Sept. 



Oct.— Mar. 

 May— Oct. 

 Dec. — May 

 June— Nov. 



Oct.— Mar. 



Dec— Mar. 



Aug. — Nov. 

 Aug. — Feb. 



Oct.— Mar. 

 Apr. — Sept. 



Sept.— Mar. 

 Apr. — July 

 Apr.— Sept. 

 )> 



Apr. — Sept. 

 Mar. — A us. 



Apr.— Sept. 



High press. 



(Low press.) 

 Low press. 



High press. 

 Low press. 



Higb press. 

 High press. 



Hiffh 



press. 



High press 

 Low press. 



Low press. 

 High press. 



Low press. 

 High press. 

 High press. 



High press. 

 Low press. 



Report of Chief of Weather 

 Bureau, U.S.A. 



Low 



r press. 



Kong. Sv. V et. Ak. Hand- 



lingar, vol. 29, No. 3 

 Army Medical Dept. Reports 

 Eeport of Met. Service of Dom. 

 of Canada 



Met. Obsns., Honolulu 

 Met., Zeitschrift, 1892 



Danish Met. Aarboe: . . 



Met.. Aarbog Norsk 



MSS. Met. Office Records 



Results of met. and mag. j 

 observations, Stonyhurst 



MSS. Met. Office Records | 



Kong. Sv. Yet. Ak. Hand- 

 lingar, vol. 29, No. 3 



Madrid Met. Obsns I 



Army Medical Dept. Reports . 



Lisbon Met. Obsns i 



Denkschriften Kaiserlichen ! 



Ak. de Wissenscliaften 

 Kong. Sv. Vet. Ak. Hand- | 



lingar, vol. 29, No. 3. 



Short record. 



Record broken, 1882—1885. 



Yearly mean curve alone 

 examined. 



Short record. 



Yearly curve alone examined . 



Broken record. 

 Record somewhat broken. 

 Yearly curve alone examined* 



Record broken after 1891. 

 Record twice broken. 

 Yearly mean curve examined. 



Record broken, 1883—1887. 



1874—1875. 



Yearly curve alone examined. 



Short record of definite type. 



2x2 



