Page 13 - The cartoons reproduced above are from 'Three Sheets in the Wind', Thelwell's manual of sailing, which is enough to make ordinary landlubbers seasick for a week. (Eyre Methuen, $5.25). In this book Thelwell. "who rows his own boat on a garden pond" mixes off-beat humour with the downright sadism which must be part of the amateur sailor's make-up. This is a laugh-a-page collection. WIFE OF THE GENERAL