In the next, a female adult (as the headdress shows) is portrayed at the moment when a full length of thread has been twisted, or she is in the act of finishing it. To this spindle _two_ conical weights were attached, unless the under one was fixed and had a cavity on the top to admit the point of the upper one to play in it. The process differs but little from that of the present Pimos and Maricopas tribes, as mentioned hereafter, except in the hollow in which the spindle turns. It is obvious that this practice is incompatible with walking; locomotion can only be associated with a spindle suspended by the thread, and whirling free above the ground. In this absence of the distaff, and especially in twirling the spindle like a top _on the floor_, the process can never be viewed as one derived from abroad; but rather as a result solely of primitive ingenuity. No people, civilized or savage, of the eastern hemisphere, are known to have thus embarrassed the movements of the spindle. The idea and the practice appear to be purely American. No ancient American spinner is represented at work either when seated or standing--much less when walking. [Illustration: Aztec Woman Spinning. From Mendoza's Collection.] For the following illustration and description the patent office is indebted to Mr. Squier, late United States Chargé to Nicaragua. It is interesting as showing how little the old native process has been changed. The common foot-wheel is extensively used in spinning cotton in Nicaragua; but the simple contrivance in use before the Conquest is not yet entirely supplanted. It consists of a spindle of hard wood, sixteen or eighteen inches in length, which passes through and is fixed to a disc of heavy wood that serves as a fly, by adding momentum to the whirling spindle. The lower end of the spindle is rounded or rudely pointed, and when in use the instrument is placed in a calabash or clean iron kettle. The mode of operation is as follows: The spinster is seated on a stool, with a bunch of loose cotton already prepared, in her lap. From this she twists a thread with her finger, and attaches the end to the spindle at the top, giving it an energetic twirl that keeps it going for some time. Meanwhile she disengages and draws out the cotton, from her lap, with both hands. The length of thread spun (from two to three feet) is then wound around the spindle, which is again set in motion, and another length added in the same manner. In the accompanying sketch, _b_ is the spindle, _c_ the thread already twisted, _d_ the disc or fly, and _f_ the calabash. When the spindle is not in motion, the calabash prevents it from falling over, the fly resting against the sides. [Illustration: Modern Spinning Apparatus of the Central American Indians.]