DISTURBANCES of ATMOSPHERIC PRESSURE . 



.yr/zi /y/> ,t/f//' ^//j/- J/t-a/ ,yu/?( ,/fdt/ ^l/^//. Jep. ^''et. ^/V(^ 2?ec JoTi. 

 /^ n : V ^— i \ r . , , r^./ 





fj' ^fe/c'c7r?^^7m^ 



