The daily morning journal and courier., 1896-10-12

that any variation of the spectrum thrown by one can be covered by any part of the spectrum thrown upon the same screen by either or both of the others. Any desired combination of colors may thus be purely made with the original light. By other instru- ments the effects of colors upon emo- tions can be measured. Such training, the psychologist believes, is the best possible foundation for an artistic ed- ucation.
 And the Different Sounds.
 Just as his eyes must regularly per ceive every variation of color, in natu- ral sequence, this child must as sys- tematically hear every possible degree of sound. As beginning, he is being trained with two little whistles, each having rubber bulb at one end and arranged to give any pitch in the mu- sical scale. In the beginning the pro- lessor held, in each hand, whistle one arranged to give much lower note than the other A piece of candy was always placed in the hand holding the whistle of lower pitch. Although the whistles were changed from hand to hand, the child soon learned to asso- ciate the lower note with something good to eat, and thus to distinguish be- tween the two pitches. By gradually altering the pitches so as to give sounds more nearly the same, greater acuteness in this discrimination Is be- | ing developed. When further devel- oped, the child will be trained by means of a large electrical instrument, which it's inventor, Professor Gates, says will give all possible variations of sound in systematic order Two elec- tro-magnets are arranged on either side of a small steel disk, about the size of three-cent piece, By means of two communicators the current may be al- ternated between the magnets at any desired velocity. With each alterna- | tion the disk vibrateS once. When Vl brating less than eighteen times sec ond it creates no audible tone, merely a series of tappings. The faster it vii brates, the higher is the tone-the tre- ble limit being two hundred thousand vibrations per second. By inserting different disks and pulling out certain slides all of the possible tone-qualities, chords or harmonies of each tone can be mathematically produced. Most ex- act lessons in discrimination between audible variations of tone will be taught with this.
 A Wide Range of Smells
 Tn similar manner the sense memo- ries, as the psychologist terms them, of smell and taste are unregistered in the | yIyi.. i, laboratory fifteen hundred different smells bottled in small phials, classi- fled and arranged in order. Starting at one end of the row and smelling in or der gradual differences can scarcely be appreciated until the two end bottles are held to the nostrils. Practice on this piano of smell will build up what the professor calls the necessary smell memories in the baby, and will teach him great acuteness in discriminating odor from odor. The same phials are used for training the taste memories, the harmful substances being omitted. A straw is dipped into the substance and then touched to the tongue. Taste and smell-training was begun upon Baby Gates when he was ten months
 
 fifty different tastes and thirty differ ent smells
 All the Senses in Order
 The development of touch is accom- plished by requiring the child to feel all sorts of surfaces, and, according to the father, to allow his mind to live in his skin, for the time being He is permit to5 to cyo ho a ai mn hpr
 of hours each day and to touch, both with hands and feet, various sub- stances and materials, such as sand- paper, velvet brushes, leaves, grass,
 earth, glazed surfaces, sticky surfaces, , etc.
 l That all of the brain cells governing his muscular sense will be fully devel- oped this same baby must have every Fone of the many muscles of his tender , body moved systematically and at reg ; ular intervals. During this exercise the father keeps before him manikin showing the position and direction of , each muscle. At first the infantile
 limbs, head and body were moved in
 different directions by the fathers
 hands until the memories of the muscu- lar feelings were mentally unregistered Now the little fellow is required tc stand on the floor and to pick up toys | and other objects from various atti- , tudes, which exercise serves as milo form of gymnastics. No single muscle in the child's entire muscular system is neglected by this action, contrived te combine mental memories of motion
 speed and direction in his brain. When he is satisfied that the funda' mental training is sufficient Professor Gates will adopt for his child elaborate courses of athletics and manual skill All of this odd training is combined . with play and is as thoroughly enjoyed as the ordinary romps of children. Another Family of Children. , The Dinwiddie children, who are be- . ing reared according to another move . scientific system of mental moral ant physical culture, are a girl and boy :, the respective ages of three and one = half and two and one-half years. Botf
 of these tots have unusually bright -ant
 sweet faces and their physical develop n ments are very far above the norma
 for the healthy, active child. Both O
 these little ones have been trained
 from birth, according to strictly uni form system. When they were abou q three weeks old they were placed il - darkened rooms and given elementar! training in activity by being attracted