But what possible advantage, we would ask, can this physical hypothesis of life have over that which ascribes to God the issues of all life in the universe, from the highest to the lowest living organism? We can positively conceive of none but that of placing the cosmological cart before the horse, and so harnessing "cause and effect" _in tandem_, that the latter shall uniformly precede the former in the chain of logical induction. As a dialectical feat, in exhibiting the higher possibilities of logic, it may have its advantages in subordinating the facts of science to the higher illuminations of fancy, and thus resting the basis of reality on the ever-changing and ever-shifting assumptions of the human mind. For the materialistic theories of to-day are not those of yesterday, nor is there any certainty that they will be those of to-morrow. They are almost as fantastic and variable as the forms of the kaleidoscope, although, as a general rule, they lack the symmetrical arrangements and proportions of that scientific toy. Professor Bastian, in considering the heterogenetic phenomena of "living matter," is obliged to fall back, near the end of his great work, on "the countless myriads of living units which have been evolved (?) in the different ages of the world's history." But by what process a "vital unit" can be _evolved_, he does not condescend to tell us. He has no "primordial formless fog" to fall back upon as has Professor Tyndall, nor can he imagine anything beyond the least of possible conceptions in a chemical, morphological, or vital unit. A "unit" can neither be evolved nor involved; it admits of no square, no multiple, no differentiation; it is simply the ever-potent unit of "organic polarity," by which it multiplies effects, but can never be multiplied itself. The chief fault that we have to find with the London University professor is that he confounds a morphological cell with a morphological unit, and insists upon drawing unwarrantable conclusions therefrom. His "countless myriads of living units" are all well enough in their way. That they exist in the earth, and are constantly developed into innumerable multitudes of living organisms, of almost inconceivable variety, in both the animal and vegetal world, is true, as he half-reluctantly admits in almost the identical language we here use.