ONE:In the centre of the town I was detained by three sailors, who called out an angry "Halt!" seized my bicycle, and made me a prisoner, "because I was an Englishman." Happily I could prove the contrary by my papers; and the permit of the Bruges commander to go about on a bicycle made them return it.Without any wish to discourage the ambition of an apprentice to invent, which always inspires him to laudable exertion, it is nevertheless best to caution him against innovations. The estimate formed of our abilities is very apt to be inversely as our experience, and old engineers are not nearly so confident in their deductions and plans as beginners are.