It is also necessary in connection with the question under reply that “An English F.T.S.” should know that the “Adepts” of the Good Law reject gravity as at present explained.  They deny that the so-called “impact theory” is the only one that is tenable in the gravitation hypothesis.  They say, that if all efforts made by the physicists to connect it with ether, in order to explain electric and magnetic distance-action have hitherto proved complete failures, it is again due to the race ignorance of the ultimate states of matter in Nature, and, foremost of all, of the real nature of the solar stuff.  Believing but in the law of mutual magneto-electric attraction and repulsion, they agree with those who have come to the conclusion that “Universal gravitation is a weak force,” utterly incapable of accounting for even one small portion of the phenomena of motion.  In the same connection they are forced to suggest that science may he wrong in her indiscriminate postulation of centrifugal force, which is neither a universal nor a consistent law.  To cite but one instance this force is powerless to account for the spheroidal oblateness of certain planets.  For if the bulge of planetary equators and the shortening of their polar axes is to be attributed to centrifugal force, instead of being simply the result of the powerful influence of solar electro-magnetic attraction, “balanced by concentric rectification of each planet’s own gravitation achieved by rotation on its axis,” to use an astronomer’s phraseology (neither very clear nor correct, yet serving our purpose to show the many flaws in the system), why should there be such difficulty in answering the objection that the differences in the equatorial rotation and density of various planets are directly in opposition to this theory?  How long shall we see even great mathematicians bolstering up fallacies to supply an evident hiatus!  The “Adepts” have never claimed superior or any knowledge of Western astronomy and other sciences.  Yet turning even to the most elementary textbooks used in the schools of India, they find that the centrifugal theory of Western birth is unable to cover all the ground.  That, unaided, it can neither account for every spheroid oblate, nor explain away such evident difficulties as are presented by the relative density of some planets.  How indeed can any calculation of centrifugal force explain to us, for instance, why Mercury, whose rotation is, we are told, only “about one-third that of the Earth, and its density only about one-fourth greater than the Earth,” should have a polar compression more than ten times greater than the latter?  And again, why Jupiter, whose equatorial rotation is said to be “twenty-seven times greater, and its density only about one-fifth that of the Earth,” should have its polar compression seventeen times greater than that of the Earth?  Or, why Saturn, with an equatorial velocity fifty-five times greater than Mercury for centrifugal force to