Rather cold, cloudy but another astonishing rise in temperature late at night to 50 degrees. Len Garrod called in morning to have his first lesson on reading the micrometer; lent mine to him for practice purposes. To Wimbledon; bought music of first movement of Beethoven's 5th Symphony arranged for the piano. Fitted stop pin to propeller gear of Williams aero.
On this day: US forces in Pacific on alert for Japanese attack. German Panzer tank advance stopped 19 miles short of Moscow. Allies occupied final Italian outpost in Ethiopia; this ended fight for Allied control of Red Sea and Gulf of Aden - in less than a year 21,500 Allied troops had beaten 350,000 Italian troops.