The daily morning journal and courier., 1904-07-11
WONDERS OF IN" RAYS,
HoW THE HUMAN BRAIN MAY
 BE MAPPED BY THEIR AID.

May Account for TeIepathy-Thsy are
 Part of Invisible Sunshine and are
 Pound in the Region of Unknown
 coIOrs.
 Looking through the skull of a man and seeing the workings of his mind IS an achievement that Professor Blondot of Paris, has succeeded in attaining by the aid of the newly discovered "N'' rays. ].
 It is a matter perfectly simple, the in- strument employed being nothing more complicated than small rectangular piece of pastehoard the size of a play ing card, one end of which is spread with a piece of phosphorescent sulphate of calcium. This substance. 1t appears, is made luminous by rays of the 'N'' description.
 When such a card, in a darkened room. is applied to mans head it does some remarkable things. The. person under experiment is told to talk, and while he keeps on talking the bit of pasteboard is brought into contact with various parts of his cranium. It shows no change until certain area on the side of the head is reached, when sud- denly the luminosity of the paste be- comes greatly increased, simply be- cause this is the area of brain surface which controls vocal speech. In work ing 1t gives off flood off "N'' rays, which cause the sulphate of calcium to shine.
 But this is not all. Professor Blondi- ot has found that by passing the card slowly over the head and watching the variation of the luminosity he can out line with perfect accuracy the vocal speech area of the brain surface. Oi course the man must talk all the time So as to keep the speech center work ing, else the card would cease to give indications.
 everybody knows, 1t is the gray matter forming the surface layer of the brain that does the thinking and con trols the physical activities. Apparent ly this layer is divided up into patches each of which has its separate function for speaking, seeing, hearing, smelling tasting and directing the movements oi IllG VdIOQ5 tllQSElCS O1 LllC4 OO0Jss ~ q section experiments on monkeys and dogs these patches on the human "cer- ebrunn" have been approximately loca- ted, but by the use of the sulphate ol calcium card they can now be definite ly, outlined.
 Thus, by the help of an entirely new means, the living human brain is to bt accurately mapped. For the card car be used as satisfactory for outlining other cerebral areas as for determining the location and limits of the speeci center. All that Is necessary is tha the person under experiment should lis ten intently to music, say, and th' phosphorescent coating will shin, brightly when brought close to the par of his skull beneath which lies the cen ter of hearing. It is the same wa, with the other sense centers, activity Q any. one of which causes an outflow Q ssN" rays.
 When, century ago. Reichenbach, z scientist, of high reputation. claimed that he could sometimes see an aureof or halo about the heads of people in tn dark it yas supposed that he was tn victim of a hallucination but 1t is a least conceivable that the phenomenon was due to an enanation of ''N'' rays which may under certain circumstance become visible to the eye.
 Another theory is that possibly tn < ssN'' rays may be accountable for tn phenomena of telepathy, or though transference, by which ideas are con veyed from one person to another, evel at a distance, without cpeech, Writini or the use of any ordinary means Q communication. That such message sometimes pass from mind to mind i \ a fact proved beyond question, thougl nobody as yet has been able to ascer ltain the agency by which the menta telegraphy is accomplished.
 All Of the nerve centers of the hu man body, when in condition of ac tivlty, emit "N'' rays. When the brair which is the greatest of the nerve cen ters, is working, its activity can made to show itself by the use of card such as the ane already reseribed Tt Is placed in contact with the fore gv,u,