. St. Nicholas [serial] . WOOD-SNAIL ON A DECAYING PIECE OF WOOD. The eyes are the tiny knobs at the end of the horn-likeprojections from the head. io34 NATURE AND SCIENCE FOR YOUNG FOLKS. [Sept. Its name is Daphtria,and itshead, whenseensidewise under a mi-croscope, looks likethat of a bird, with itslarge round black if you see it fromabove you will noticethat instead of havingtwo eyes it has but one,and that one in thecenter of the head,and thus upon which-ever side you look yousee the same eye. Thisqueer organ does notcome to the surface anywhere, which is in this case of no impor-t


. St. Nicholas [serial] . WOOD-SNAIL ON A DECAYING PIECE OF WOOD. The eyes are the tiny knobs at the end of the horn-likeprojections from the head. io34 NATURE AND SCIENCE FOR YOUNG FOLKS. [Sept. Its name is Daphtria,and itshead, whenseensidewise under a mi-croscope, looks likethat of a bird, with itslarge round black if you see it fromabove you will noticethat instead of havingtwo eyes it has but one,and that one in thecenter of the head,and thus upon which-ever side you look yousee the same eye. Thisqueer organ does notcome to the surface anywhere, which is in this case of no impor-tance, since the head is perfectly transparent;and surrounding the mass of pigment there are clustered a numberof crystalline bodieswhich draw the raysof light like so manylenses, and in addi-tion may catch alittle of the color,and possibly of theform, of surround-ing objects. Thiseye is turned up anddown by the mus-cles shown in thepicture, which actmuch like rubberbands, and the eye is constantly cocked up androlled arou


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Keywords: ., bookcentury1800, bookdecade1870, bookidstnicholasserial292dodg