In our old factories at Plymouth and Bristol in the hard paste and at Bow in the soft paste, owing to an imperfect knowledge of the technique, fire-cracks often appeared in the body of objects intended for ornament. Collectors of experience and mature judgment know exactly what the potters did in these trying circumstances. The scientific examination of the treasures of the china cabinet has revealed many of the potter's tricks. A fire-crack becomes the body of a butterfly gaudily painted in rich colours. This is one instance of the use of colour to conceal the inexactitude of the craftsman. Similarly, in figures it becomes a speculative question as to what their character would turn out to be when they were stripped of the gorgeous costumes with which they are decked. Many a Chelsea figure with rich brocaded surtout, yellow vest, and breeches of amazing colour in scale pattern of peacock hues, would turn out to be a veritable scarecrow if stripped of the glories of pigment. The colour has deceived the eye in regard to form. This love of colour and disregard of the niceties of form has betrayed many enthusiasts into going into raptures over monstrosities which would not bear the light of day upon them if they were in biscuit state. It is a matter for conjecture how many Staffordshire figures or Toby Jugs, minus pigment, would call for a word of praise judged solely on their modelling and symmetrical beauty. In Copenhagen, from the early overglaze painted figures of the Müller period to the underglaze decorated figures of the Renaissance style, there is one quality that they have in common. This is especially noticeable in comparing them with work of other factories over an extended period of time. They exhibit with unerring precision the limitations of the potter in regard to the medium in which he works. At no time has the Copenhagen modeller attempted, save in the decadent period when he copied Thorvaldsen's sculpture, to encroach upon the work of the silversmith or the glass-blower. He has been true to the clay whose properties in the fire he knows so well. The technique of modelling in clay follows laws as definite as can well be laid down. It is the same in all crafts where strict observance is paid to the use for which objects are created. The Japanese ivory-carver in his _netsukes_, or ivory fastenings for garments, carves them as nearly oval or round as is possible. It may be a curled-up mouse, or an old man with a barrel, or any other fanciful subject, but the absence of spikes is the sign that the work is old and not modern carving for the European markets, when such objects bristle with points.