KEY MAP. 



EXPLANATION. 



The Daily and Mean. Afon/Aty chart* in thin vvlumr are bated on dail\ absrna&ong recorded 1 at place* indicated an. 

 At akm-e chart , in ajiditivn to those rrcriwd from Shipf t-f thr RiryoJ. Navy and Mrrcantlir Marino. 



Tkt rrd and kluf Unrf on tkr ckartm of than. Monthly, and SormaLjtor Trmprraiure or* llothtrmt or Une of 

 Equal. 4<r Tmpfraturt Tn* Itnet in rtd reintf to Uiermomtter rtadtnys o/" JS'/oAr. or ntmr Inaff in Mu tf 

 reading* of 30' Fahr OJni 4r/r< 



TV red and klur lines an thf Daily, Mr an Mtnttlty and Normal cnortt of Pre*nrt or* Isokurf or 

 Mtnm*lnePrtsaurr TKt line* in rtd rtlatt to koj-om*t*r reading* of 29 7 tn* or aJ>o\t. tnvtt in blur la 

 of 29 6 in* and belt** Tnr *m-d* ~Hiah" and itm-'on tne Daify cnart* art tntr o ductd -wntrf pr r**ur+ IM tayhf.it or 

 lamest in antuyclonts and dtprttuionm rtapectturet} Fiyum* in black reftr to Air Temperature, the afro* tie 

 Wind The latter t'fy "A tnt ind . the force of whicft.ynen in number* of the Bfou/hrt Scat*. I* mhtmn. ** 



lt ttt . 



