CHAPTER III.--GENESIS OF THE BRAIN Beginning of the brain--Its correspondence to the animal kingdom and the law of evolution--Inadequacy of physical causes in evolution--The Divine influence and its human analogy--Probability of influx--Possible experimental proof--Potentiality of the microscopic germinal element and its invisible life--Is it a complete microcosm?--The cosmic teaching of Sarcognomy--The fish form of the brain--The triple form of the brain--Decline of the middle brain--Brains of the codfish, flounder, and roach--Embryo of twelve weeks--Lowest type of the brain--Measurement of the embryo brain--Structure of the convolutions--Unfolding of the brain--Forms of twenty-one weeks and seven months--Anatomy shows the central region--Its importance--Neglect of prior authors--Errors of the phrenological school explained--Misled by Mr. Combe into a false system of measurement--How I was led to detect the error--Form of the animal head and form of the noble character--Line of the ventricles--Coronal and basilar development--Its illustration in two heads and in the entire animal kingdom---Dulness of human observers--Anatomy shows the central region--Circular character of cerebral development--Accuracy of a true cerebral science, and errors of the Gallian system. The brain begins in a human being in embryonic life, as it begins in the animal kingdom, void of the convolutions which are seen in its maturity,--beginning as a small outgrowth from the medulla oblongata, which after the second month extends into three small sacs of nervous membrane inclosing cavities, making a triple brain, such as exists in fishes, which are the lowest type of vertebrated animals,--animals that have a spinal column or backbone. From this condition, the fishy condition of the nervous system of the embryo human being at the end of the second month, there is a regular growth which develops in the embryo the forms characteristic of higher orders of animals in regular succession,--fishes, reptiles, birds, and quadrupeds or mammalia, monkeys, and man.