The eighth group is known as the Perceptive Qualities, composed of the following particular Qualities, respectively: _Observation_; _Form_ _Size_; _Weight_; _Color_; _Order_; _Calculation_; _Tune_; _Time_; _Locality_; _Eventuality_, and _Words_. This group manifests outer form in the lower part of the forehead, in the region of the eye. (See Fig. 9.) When large this group often gives to the upper forehead the appearance of "retreating" or sloping backward. Prof. O. S. Fowler says of the appearance of those Qualities which manifest outer form _under_ the eyebrows: "The following rule for observing their size obviates the objection sometimes urged that the eyebrows and their arches prevent the correct diagnosis of these smaller organs crowded so thickly together. The rule is: _The shape of the eyebrows_ reveals the size, absolute and relative, of each, thus: When _all_ are large, the eyebrow is long and arching; when all are deficient, it is short and straight; when some are large and others small, it arches over the large ones, but passes horizontally over those which are small. This rule is infallible." The other Qualities of the group, according to Prof. Sizer, "is located above the eyes, and ... constitute about one-third of the depth of the forehead, beginning at the arch of the eye." [Illustration: FIG. 9 THE PERCEPTIVE QUALITIES] OBSERVATION. This Quality was given the name of "Individuality" by the early phrenologists, but this term is considered misleading, owing to the later usage of that term. It manifests in a strong desire to observe, see, examine, inspect, and "know" the things of the objective life. Those in whom it is largely developed feel the insatiable urge of the inquisitive spirit; they desire to investigate everything coming under their notice. Many little details in the objects or subjects in which they are interested are noticed by them, while overlooked by the majority of people. Prof. Sizer says of it that it "gives a recognition of things and the special points and facts of subjects; quickness of observation is an important element in the acquisition of knowledge.... Those in whom it is large are eager to see all that may be seen, and nothing escapes their attention. It opens the door for the action of all the other perceptive organs.... They are quick to notice everything that is presented to the eye; and it goes farther, and enables us to recognize that which we touch, or sounds we hear. The rattling strokes of a drum are distinct noises, and each is an individuality."