Of the tandem tricycle I shall have little to say, as my experience does not justify the attempt; also of the single tricycle I cannot give much of an account. This book does not pretend to treat of man-motor carriages so generally as to include all of the two- or three-track devices, nor of the three- or four-in-hand. Latterly remarkable records have been made on a “triplet,” and we hope this machine is all that is claimed for it. But there is too great a step from a single-track machine to the double or triple to treat of them all, so for the present I shall confine myself principally to that class in which the rider is maintained in an upright position by means of steering. The only single-track tandem which now bids fair to attain any conspicuous position is that built upon the Rover Safety principle, where two low wheels support two saddles and the rear wheel is made the driver by means of a series of sprocket-chains and cranks. No lever-motion machine, for two, of any pattern, has as yet made an appearance in the market. It is quite probable that the rear-driving tandem will acquire an enviable place in the sphere of cycling, and it certainly deserves to be enthusiastically welcomed among us. Very few cyclers care to take a spin all alone, and it takes two riders at least to make company: why not then mount them sociably upon one vehicle? Surely the tandem method must steadily gain favor, and when it is finally and securely launched in our midst, we shall derive much pleasure from its use, and for touring it must become invaluable. No doubt a very little increase of weight of parts and cost can and will finally serve two happy cyclists. When this is accomplished it will take but little palaver to sell to touring parties at once, since one machine, even if of double weight, can be handled, in many cases, by two men much more easily than each can handle a light one alone. The Tandem takes up less space in a railroad car than two separate machines, and any store-room can be made to accommodate an increased number of saddles. The machines will mostly be made for each to accommodate both a lady and gentleman or two gentlemen, as may be preferred, and on this account they will, at some not far distant time, partially supplant single mounts. Some will also be made convertible; that is, capable of being divided into two single cycles. It is hardly probable that machines for more than two will ever become general, at least not for social riding; no better reason can be given than the old saw, “two’s company and three’s a crowd.” We do not, however, venture to prophesy positively about multiple riding (that is, more than double), since it has a start now, and there is no telling where it will end.