compress'd so as to make the black Spot appear in the center, is
delineated in the second Figure; where _a_, _b_, _c_, _d_, _e_: _f_,
_g_, _h_, _i_, _k_: _l_, _m_, _n_, _o_, _p_: _q_, _r_: _s_, _t_: _v_,
_x_: _y_, _z_, denote the Colours reckon'd in order from the center,
black, blue, white, yellow, red: violet, blue, green, yellow, red:
purple, blue, green, yellow, red: green, red: greenish blue, red: