The Bookshelf for boys and girls: Nature and Outdoor Life (1912)
University Society, New York · New York. : University Society · leaf 103
yes, there are, in many full-growninsects, simple eyes, in number from oneto four, between the compound eyes. Themost common number is three, so arrangedthat imaginary lines connecting themwould form a triangle. It is supposed byscientific people that these simple eyesare useful in dark places and… … ECTI so
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
Internet Archive · BYU–Idaho · Public Domain Mark 1.0. Free to use for anything.
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