Gradually Baron Reichenbach extended the range of his experiments, employing for that purpose, besides his own daughter, especially a Miss Nowotny, a sad sufferer from cataleptic attacks. She was able to distinguish, by the sensations which were excited in her whole system, more than six hundred chemicals, and arranged them, under his guidance, according to their electro-chemical force. Another sick woman, Miss Maiss, felt a cool wind whenever certain substances were brought near her, and by these and similar efforts in which the baron was aided by many friends, he ascertained the fact, that there is in nature a force which passes through all substances, the human body included, and is inherent in the whole material world. This force he calls the Od. Like electricity and magnetism, this Od is a polar force, and here also opposite poles attract, like poles repel each other. The whole subject, although as yet only in its infancy, is well deserving of careful study and thorough investigation. The manifestations of so-called spirits have naturally excited much attention, and given rise to the bitterest attacks. In England, especially, the learned world is all on one side and the Spiritualists all on the other; nor do they hesitate to say very bitter things of each other. The _Saturday Review_, more forcibly than courteously, speaks of American spiritualists thus: "If this is the spirit world, and if this is spiritual intelligence, and if all the spirits can do, is to whisk about in dark rooms, and pinch people's legs under the table, and play 'Home, Sweet Home,' on the accordeon, and kiss folks in the dark, and paint baby pictures, and write such sentimental, namby-pamby as Mr. Coleman copies out from their dictation--it is much better to be a respectable pig and accept annihilation than to be cursed with such an immortality as this." To which the _Spiritual Magazine_ (Jan., 1862), does not hesitate to reply. "We shall not eat breakfast bacon for some time, for fear of getting a slice of the editor of the _Saturday Review_, in his self-sought appropriate metempsychosis." It must be borne in mind, however, that spiritualists everywhere appeal to their own reason as the highest tribunal before which such questions can be decided, and to the laws of nature, because as they say, they are identical with the laws of practical reason. They believe, as a body, neither in angels nor in demons. Their spirits are simply the purified souls of departed men. Protestant theologians, who admit of no purgatory, see in these exhibitions nothing but the deeds of Satan. Catholic divines, on the other hand, and Protestant mystics, who, like the German, Schubert, believe that there exist what they curiously enough call a "more peaceful infernal spirit," ascribe them to the agency of evil spirits. In the great majority of cases, however, the spirits have clearly shown themselves nothing else but the product of the media.