Show HOLE IN THE PICTURES BY LAWRENCE FLETCHER Do you know that you are blind In both eyes If you look with one eye at n painting or out of a window you do not see all the canvas or the landscape There Is a hole In the picture a pretty big hole us largo In proportion as a hole made by poking your linger through a small photograph pho-tograph of the picture You would be likely to notice oven with ono eye such u hole in the photograph Why do you not nolle the larger I hole in the larger liletu e Ono reason Is I that the hole moves with your eye and Is never fn the direction In which you arc looking When you turn lo look at it It has moved to another place and as your eye naturally lOC S rapidly over the I whole picture every ev-ery part of which you sec at one time or another you are not conscious of missing one part now and another part then When both eyes arc open there 1 Is I no hole as each eye sefs the spot missed by the other To find the hole It Is best to take a plcluro made expressly for the purpose BIte the star and cross printed here Shut your loft oye hold the paper at arms length and look straight at the star the lefthand figure You still see the cress thou h you are not looking directly at It Gradually bring the paper nearer always looking at the afar Presently you miss the cross It has vanished Into till hole As you bring the paper still nearer the crops reappears and If you repeat the experiment ex-periment slowly you will notice that It goes and comes gradually The lefi hand slclr nearest to the stars the first rte vanish and the first to appear again f If the star and cross arc three Inches apart ho cross will vanish when you bring tho paper within eleven or twelve Inches from your eye and reappear when It la a couple of Inches closer At this distance of ten or twelve Inches the mliislnj part of be I picturf tho hole Is nearly one Inch In diameter You can repeat the I star and cross experiment ex-periment with the left eye by looking at the cross and making the star vanish Now what Is this hole In tho picture You have perhaps heard the eye compared com-pared to a photographic camera and that Is Just what it is Only Instead of a sensitive sen-sitive pinto or film It has a multitude of delicate organs sensitive to light scattered scat-tered over the back of the eye and connected con-nected with nerves which come together and pass out of the eye In a bundle a lit lie to the inside or nose side of the middle mid-dle Like the picture in tho camera the picture In the eye Is Inverted limo top of the object you are looking at is pictured at tho lower part of the eye and the right side of the object nt the left side I of the eye This IH because the picture of each point is tamale by the little beam light that crosses over to tho opposite side of the eye Now where the bundle of nerves enters there are none uf those little sensitive organs or-gans In which the nerves end In fact there are no ends of nerves at bat I spot t though all the nerves pass > through It Suppose there are 100 telephone tele-phone wires strung on a bridge which forms the entrance to a city After crossing the bridge the wires separate and spread through the city rind at the end of each wire there Is a telephone bj means of which you can send and receive messages Hut you hear no sound whon you put your ear to tho wires on the bridge bii caiihO there Is no telephone there I So with the nerves of the eye There Is no apparatus sensitive to light at the point where they entered the eye and l therefore the part of tho picture that would he found at that spot Is blank as much ao as if the spot wcro an actual holo In n photographic plate on which you were taking a picture This blind spot In the ce Is only a twentieth of an inch In diameter but It Is a large spot on so small a picture and It makes n hole ap big in proportion In the larger picture or real scene aC which the eye Is looking |