Now, besides these underground trains, which are not seen, there are many huge motor-omnibuses to convey people about the streets above ground. These omnibuses are painted in very bright colours--generally red--and the newest of all are made very conveniently so that the passengers inside can mostly sit facing the way they are going, as they do outside. You can go inside or out, and in summer it is a very good way of seeing London to go on the top of an omnibus and watch all that goes on in the streets below; in the old days the horse omnibuses were often stuffy inside, with no windows to open at all, and it is a wonder anyone could be found to go in them. When the motor-omnibuses are full they carry a great many people. Those of the latest pattern carry fifty-four passengers inside and out. There is now a regulation to make omnibuses stop only at certain fixed places which are shown by sign-boards with the numbers of the 'buses on them. This saves the constant stopping and starting again, which is trying for the driver, and wastes much time. People are often very inconsiderate about this; they never think of getting off if the omnibus stops just a little way before the place they are going to. I have seen a woman--I'm afraid women are the worst in this respect--wave her umbrella to the conductor of an omnibus that was going at a good pace, so the omnibus stopped, and the woman took quite a long time to go across the street to it; and when she reached it she asked if it were going to the place she wanted, and it was not, so all the stopping and waiting had been for nothing. The motor 'buses go very much faster than the old horse 'buses, and as they carry, also, many more people, altogether, as we have seen, they do more work in the way of conveyance altogether. You can go a long way in an omnibus for a few pence, but taxi-cabs are much more expensive; they are also very comfortable--no stopping and waiting for other people then. You are carried swiftly and smoothly to your destination, unless you are held up by the traffic; and you always know just how much you will have to pay, as the little clock face beside the driver marks up the extra payment as the cab covers the ground. The motor cabs in London are more comfortable than the hansoms were. But the old hansom was very good for seeing in the streets, as the driver was behind and not in front of you. The four-wheel horse cabs seem very slow to us now, but they carried more luggage than the taxi-cabs can. Some of us think that the old omnibuses and cabs were more interesting than the modern ones. I will tell you a story an omnibus horse told me. His name is Billy, and he lives in the outskirts of London.