11 OCTOBER 1986, page 31

Halley's Comet

Sir: May I thank the various readers who have so splendidly solved the riddle about Halley's Comet which I recently posed in the Diary (20 September). The most suc- cinct......

Four Balloons

Sir: Mr Richard Bassett seems to have let his enthusiasm run away with him (`Grounded at last', 4 October). Godfrey (or Gottfried) von Banfield was unquestionably a gallant......

Nearly Perfect Murder

Sir: May I add a personal recollection to Jeff Bernard's note on the 'gruesome exhibit' in Scotland Yard's Black Museum (Low life, 13 September). The bottled arms in fact......

Letters Pitcher Of Spit

Sir: Paul Johnson is right to draw attention to the lack of protest over the Labour Party's action in banning the four newspap- ers of the News International group from its......

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