[Illustration: Fig. 77] First, then, I will give you a representation of this part of the body, from an anatomical figure [Fig. 77 T p. II], to show what a sameness there is in the shapes of all the teeth-like insertions of this muscle; and how regularly the fibres, which compose it, follow the almost parallel out-lines of the ribs they partly cover. [Illustration: Fig. 78] From what has been said before of the use of the natural covering of the skin, &c. the next figure [78 T p. II] will easily be understood to mean so tame a representation of the same part of the body, that tho' the hard and stiff appearance of the edges of this muscle is taken off by that covering, yet enough of its regularity and sameness remains to render it disagreeable. Now as regularity and sameness, according to our doctrine, is want of elegance and true taste, we shall endeavour in the next place to show how this very part (in which the muscles take so very regular a form) may be brought to have as much variety as any other part of the body whatever. In order to this, though some alteration must be made in almost every part of it, yet it should be so inconsiderable in each, that no remarkable change may appear in the shape and situation of any. [Illustration: Figs. 79, 80 and 81] Thus, let the parts mark'd 1, 2, 3, 4, (which appear so exactly similar in shape, and parallel in situation in the muscular figure 77) and not much mended in fig. 78, be first varied in their sizes, but not gradually from the uppermost to the lowest, as in fig. [79 T p. II], nor alternately one long and one short, as in fig. [80 T p. II], for in either of these cases there would still remain too great a formality. We should therefore endeavour, in the next place, to vary them every way in our power, without losing entirely the true idea of the parts themselves. Suppose them then to have changed their situations a little, and slip'd beside each other irregularly, (some how as is represented in fig. [81 T p. II], merely with regard to their situation) and the external appearance of the whole piece of the body, now under our consideration, will assume the more varied and pleasing form, represented in fig. 76, easily to be discern'd by comparing the three figures, 76, 77, 78, one with another; and it will as easily be seen, that were lines to be drawn, or wires to be bent, over these muscles, from one to the other, and so on to the adjoining parts; they would have a continued waving flow, let them pass in any direction whatever. The unskilful, in drawing these parts after the life, as their regularities are much more easily seen and copied than their fine variations, seldom fail of making them more regular and poor than they really appear even in a consumptive person.