Under the title Species we employ the Arabic figures 1, 3, 2.
I designates the eccentric form, II the concentric form, III the normal form.
The Arabic figures have the same signification.
The normal form, either in the genus or the species, we place in the middle column, because it serves as a bond of union between the two others, as the moral state is the connecting link between the intellectual and vital states.
Thus the first law relative to the primitive forms of the organs is applied in the three transverse columns, and the second law relative to their compound forms is reproduced in the three vertical columns.
As may be easily proven, the eccentric genus produces three species of eccentric forms, marked in the three divisions of the lower transverse column.
Since the figure 1 represents the eccentric form, 1-I will designate the form of the highest degree of eccentricity, which we call eccentro-eccentric.
Since the figure 3 represents the normal form, the numbers 3-I will indicate the normo-eccentricform.
Since the figure 2 designates the form which translates intelligence, the figures 2-I indicate the concentro-eccentric form as a species. As the species proceeds from the genus, we begin by naming the species in order to bring it back to the genus. Thus, in the column of the eccentric genus the figure 1 is placed after the numbers 3 and 2, which belong to the species. We must apply the same analysis to the transverse column of the normal genus, as also to that of the concentric genus.
Following a diagonal from the bottom to the top and from left to right, we meet the most expressive form of the species, whether eccentric, normal or concentric, marked by the figures 1-I, 3-III, 2-II, and by the abbreviations Ecc.-ecc. (Eccentro-eccentric), Norm.-norm. (Normo-normal), Conc.-conc. (Concentro-concentric). It is curious to remark how upon this diagonal the organic manifestations corresponding to the soul, that is to love, are found in the midst, to link the expressive forms of life and mind.