In connection with the regular course of exercises, prescribed for third- and fourth-year children, there is introduced in the play and work rooms of the kindergarten, a special training, designed to develop the various sensations of heat and cold: changes in temperature, from one extreme to the other: sensitiveness to touch: to recognize any degree of pressure, from zero to the violence of pain: ability to detect size, length, breadth, and thickness: degrees of smoothness, elasticity, and hardness: all through the senses of touch, pressure, and muscular feeling. Interesting plays are invented for the children, into which, these exercises are skillfully introduced. These plays, have a peculiar fascination. They excite an intense interest, which seems to always attract and hold the child's attention, until there is enregistered, in regular sequence, in the touch areas of the brain, all the sensations and images, which can be produced by many weeks of training, in this systematic course. The training of the senses, is also carried forward through the medium of such plays as are calculated to bring out the child's capacity to distinguish the least noticeable difference, in pitches of color, degrees of light, pitches of sound, with its degrees of volume and loudness; together, with ability to discover the least noticeable difference, in resistance to pressure, or the slightest increase or decrease of rythmical motion, etc. The lines of least noticeable difference, in the capacity of the various senses, having been well established, the training commences along those lines. Very soon, in the brain areas of the senses under training, there comes an increased cell growth, which gives added sharpness and capacity. The line of least noticeable difference, is moved one step nearer the limit. This process is continued with each sense separately, until the limit for all has been reached. As a general result of this training, we find that the child has acquired an extraordinary reinforcement of brain power and intellectual acuteness. Regular kindergarten work, for children at Solaris, between two and four years of age; is again reinforced, by adding to the list of exercises, a large number of plays, which introduce the variously colored, lettered blocks, so successfully used in Fern Fenwick's early training, during her seven years of Alaska life. The collection of blocks, is a very large one. It is calculated to furnish a series of new combinations, which cannot be exhausted, in the plays of one whole year. These blocks are made and colored with the greatest care. The groups or families, are distinguished, by size, shape and color. The Alphabet blocks, are large cubes, painted white, with the letter showing in black on every side. All other blocks, have a uniform thickness of one-half inch. They are as large as can be fashioned from blocks two inches square. The names appear in white letters, on all alike.