一.塑胎用具:黄土(或粘土)少许,木板一塊,玻璃棒一根,水。将黄土除去其中的砂粒及其他杂质,放在木板上,加水合成泥,在木板上反复摔打,使其团粒尽量破坏,至摔匀时为止;但在加水时,不可使泥过软,以免其收缩性太大,而影响其真实性。将泥摔好后,即根据米丘林选集第329页所载之尺寸大小,及课本所附之彩图,进行(?)塑,(?)塑后放在阴暗之处,勿见日光,以免有干裂现象;在表面之泥呈现有些干燥时,即进行轧光,乃用玻璃棒在胎上磨擦,在其稍干之面上出现亮光时为止,此时若发现有不匀称之处,可用泥稍加修补,轧光后仍放原处待 A plastic tire equipment: a little loess (or clay), a piece of wood, a glass rod, water. Loess which will be removed from the sand and other impurities, on the board, add water to make mud, repeatedly beat on the board, so agglomerate as much as possible to break even until the time; but add water, the mud can not be too soft, lest its Shrink too much, which affects its authenticity. After the mud has been shattered, it is molded (?) According to the size and size of the Mitchell Collection, as well as the color drawing attached to the textbook, and placed in a dark place without the sunlight, In order to avoid the phenomenon of chapped; in the surface of the mud showed some dry, that is calendared, is the glass rod in the tire friction, slightly light on the surface when it appears so far, if found at this time there are irregularities, Can be used to repair a little mud, calendared still put the original place to be