The other exhibits above referred to are strictly commercial in character, and conducted in the interests of the exhibitors, and consequently may not command the prestige possessed by the Chicago Institute. Nevertheless they are important educational factors in their special localities and are a great convenience to all connected with the building trades. Every large commercial centre should be thus supplied. The success of those already established will doubtless lead to the early establishment of others. Architects and manufacturers both need only to observe the workings of any of the exhibits which we have mentioned to be convinced of their great practical value, and each individual will be enhancing his own interest while contributing to the success of all the others concerned by lending whatever assistance he can to this most praiseworthy enterprise. Notes. An architect cannot work to the best advantage without the best and most convenient appliances. It is true that sometimes the cleverest and most skilful draughtsmen appear least concerned about their instruments and materials, and often produce work showing wonderful dexterity and mastery of technique with the most imperfect working materials. But this is exceptional. After years of study and practice one may be able to produce with the sharpened end of a match, or with a toothpick, drawings which it would tax the skill of an ordinary draughtsman to approach with the best brushes and colors, but it is easy to see that this is no argument why the latest and most improved methods should not be employed. [Illustration] Most architects still hold to the old-fashioned drawing boards supported upon trestles, and mostly from the simple inertia of custom. The improved Morse Universal Drawing Table, which is made in all sizes, with a single or double support, is conceded to be more convenient and ship-shape in all respects than the ordinary drawing board, and is only slightly more expensive in its first cost. The size which is shown in the accompanying illustration which has a board 30x36 inches, costs only $15 and is by far the cheapest and best device of its kind that we have seen. All of these tables are made to fold so as to occupy as little space as possible when not in use; will revolve or incline at any angle, and independently of the attachments below. They are built of the best materials (iron, brass, and wood) and are finely finished. The board can be made of either polished chestnut or unfinished pine if desired, and various additional attachments can be had for further convenience. Architects and draughtsmen will be surprised to find what a saving can be made in time and trouble by the use of this most essential article of furniture, as well as the remarkably low price at which it can be bought.