THREE:3. The strains to which shafts are subjected are the torsional strain of transmission, transverse strain from belts and wheels, and strains from accidents, such as the winding of belts.In conclusion, a few words may profitably be devoted to the question whether the rationalistic movement of our own age is likely to be followed by such another supernaturalist reaction as that which made itself so powerfully felt during the first centuries of Roman imperialism. There is, no doubt, a certain superficial resemblance between the world of the Caesars and the world in which we live. Everywhere we see aristocracies giving way to more centralised and equitable forms of government, the authority of which is sometimes concentrated in the hands of a single absolute ruler. Not only are the interests and wishes of the poorer and less educated classes consulted with increasing anxiety, but the welfare of women is engrossing the attention of modern legislators to an even greater extent than was the case with the imperial jurists. Facilities for travelling, joined to the far-reaching combinations of modern statesmanship and modern strategy, are every day bringing Europe into closer contact with the religious life of Asia. The decay of traditional and organised theology is permitting certain forms of spontaneous and unorganised superstition to develope themselves once more, as witness the wide diffusion of spiritism, which is probably akin to the demonology and witchcraft of earlier ages, and would, no doubt, be similarly persecuted by the priests,��who, as it is, attribute spiritualistic manifestations to diabolical agency,��had they sufficient power for the purpose. Lastly, corresponding to the syncretism of the Roman empire, we may observe a certain mixture and combination of religious principles, Catholic ideas being avowedly adopted by even the most latitudinarian Protestants, and Protestant influences entering into Catholicism, much more imperceptibly it is true, but probably to an equal extent.

But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great