Daily Arizona silver belt., 1908-10-04
DUR ERRAT|C SENq]
Some of the Curious Facts B.
 corded by Physioiogists
THE PHENOMENA OF S0u,

cate Sense of Smell. If you shade the eyes, you we,,. your sense of hearing. Try it vn watch and the result will surprise .. If you sip glass of cold water ., will increase for a short time r. power of vision. If you fll the nn with water. you will greatly strerr en your sense of smell.
 Many similar curious facts abOu, senses are told by physiOlOgists.
 There Is a multitude of sounds ms. in the world every day, for inst,O, which we cannot hear, however cay thev may be. Every sound must lss certain time in order to be heard the ear. If it is an extremely tsl sound 1t must last quite two secx, or ~e cannot hear it. But. no man, how long it lasts, we cannot hear a 1t is a very low or a very high us Extremely small animals emit sd high notes that we never hear hw Some people cannot even hear squeal of mice. The lowest nots an organ are mere .rumbling uoiss most people, and some cannot As them at all.
 It is by means of the external ear, judge the direction from which sgz. comes. Stand facing clock, Bs your hands in front of your ears, vi the palms turned back. close your eys you will then think the clock is beAs you.
 Why can some animals smell ns keenly than others? It is a question the space within the nose capabe smelling. In man this space is vs small-less than one-fourth of squrI inch. In dogs and most mammas is very much larger. The popoiSe no sense of smell. Then comes nx and also the monkeys, whales and kinds of fowl and birds, with "a feeble smelling power. When pie talk of vultures scenting ia bodies they make a mistake. La tigers. wolves. etc, can scent then long distances. but vultures depend their sense of sight.
 The sense of smell is exceedingly q icate. If one ounce of musk were yided into 15.000,O00.O00 parts one these infinitesimal parts would be s ceptible by the average persons us On the other hand, many people sH no power to smell some substana such as mignonette. vanilla, yiOlets prussic acid.
 Taste is curious in the fact that I ferent parts of the tongue appred different fiavors. At the tip we ceive sweet tastes best, at the sa acid tastes and at the back bin tastes. Substances must be diSsdz in order to be tasted, and dry uOs in a dry mouth has no flavor. T@ why smokers cannot taste we'll ID mouth glands. which manufacture | liva, are paralyzed by the tObaa Very hot or very cold things are scaa ly tasted at all. If you want to the best flavor from your food it uu be at some temperature between and 95 degrees.
 Every one knows how easily sense of sight is deceived by Opn puzzles. But a curious deception practiced on us all throughout lives, and no one ever perceives There is blind spot in the eye ws the optic nerve enters. In every1 we look at. therefore. there is no gap where we see nothing. But nod is aware of it, because it has been case since we first opened our eyes 1 In estimating distance we judge the experience we gain in walz The eye itself cannot judge distaDs A near hill and a distant mOun1 will each form an image of the SD size on the eye. We know the nO' tain is farther away than the hI cause there are more intervening | jects. But we can often make an e mate of distance. in a curious va! the muscles of the eyeball. In a' to focus near object we must Oa the lens, and to focus a distant ONf we must flatten the lens. The ame' of muscular labor used in doing gives us an idea of the distance G object.
 A man seems much thinner in 2 than in light clothing. All black tDn in fact, appear smaller than ND things of the same size. An imae mains on the eye for some time looking at an object. If the thA very bright the image remains time, and sometimes if you look aD0 ly at the sun you will carry the lD of it around with you for days
 Color blind people have deie musical sense. They confuse dine notes, and. curiously, the confus~ green blind people differs from confusion of red blind people. strengthen the sense of taste. k" pies and tomatoes and straW@ and green pickles taste better thap selfsame vegetables and fruit v they are paler.
 For feeling we have vareV nerves. Some spots on the sSln pain, some warmth. some cola some simple touch. The tip finger has a much better sens touch than the forearm or tbe eD But the cheek and the forearm aN better judges of heat. In the "