24 MAY 1968, Page 30

`Eliminate the impossible •••'

Sir: `Fool that I am . . (S. Holmes, Solitary Cyclist and Hound of the Baskervilles). Mr John E. Robson (Letters, 3 May) is absolutely right and my review was indeed obstructed by huge 100-horsepower Benz. By a fortunate coincidence this fact can only have increased the embarrassment of the, vice-president of General Motors, who was for so many years the much admired commissionaire of the Baker Street Irregulars.