Until I was seven years old, I had never left the United Kingdom. We then all went to Paris for a fortnight, on our way to the Riviera. I well remember leaving London at 7 a.m. on a January morning, in the densest of fogs. So thick was the fog that the footman had to lead the horses all the way to Charing Cross Station. Ten hours later I found myself in a fairy city of clean white stone houses, literally blazing with light. I had never imagined such a beautiful, attractive place, and indeed the contrast between the dismal London of the "sixties" and this brilliant, glittering town was unbelievable. Paris certainly deserved the title of "La Ville Lumiere" in a literal sense. I like the French expression, "une ville ruisselante de lumiere," "a city dripping with light." That is an apt description of the Paris of the Second Empire, for it was hardly a manufacturing city then, and the great rim of outlying factories that now besmirch the white stone of its house fronts had not come into existence, the atmosphere being as clear as in the country. A naturally retentive memory is apt to store up perfectly useless items of information. What possible object can there be to my remembering that the engine which hauled us from Calais to Paris in 1865 was built by J. Cail of Paris, on the "Crampton" system; that is, that the axle of the big single driving-wheels did not run under the frame of the engine, but passed through the "cab" immediately under the pressure-gauge?--nor can any useful purpose be served in recalling that we crossed the Channel in the little steamer La France.