Vol. 25, No. 93, p. 406 and 412. Fig. 5 and Fig. 8 have been printed incorrectly. The two graphs of probability density should be interchanged. The captions are correct as printed.Google Scholar

Vol. 26, No. 94, p. 23. The pressures other than 1000 mbar are incorrectly marked on the isobars in Fig. 10. Fortunately the high over Greenland was only 1035 mbar and the low east of Iceland 965 mbar. The numbers should be changed as follows: for 650 read 965, for 700 read 970, for 750 read 975, for 800 read 980, for 850 read 985, for 1100 read 1010, for 1150 read 1015, for 1300 read 1030Google Scholar