File:Cell intelligence; the cause of growth, heredity and instinctive actions, illustrating that the cell is a conscious, intelligent being, and, by reason thereof, plans and builds all plants and animals (14761339245).jpg

Identifier: cellintelligence00quev (find matches)
Title: Cell intelligence; the cause of growth, heredity and instinctive actions, illustrating that the cell is a conscious, intelligent being, and, by reason thereof, plans and builds all plants and animals in the same manner that man constructs houses, railroads and other structures
Year: 1916 (1910s)
Authors: Quevli, Nels
Subjects: Cells
Publisher: Minneapolis, Minn., Colwell Press
Contributing Library: Internet Archive
Digitizing Sponsor: Internet Archive

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
er. Take again for instance protective coloration. Themilitary experts are now adopting and taking advantageof the tricks of the cell. The zebra in its bright stripes isalmost invisible in the jungles of his natural habitat.When the cells building the zebra gave him the stripeswhich make him so conspicuous in the circus they knewwhat they were doing. The experience of hunters alltestify to the fact that the tall grasses and trees in thejungle where he lives make the zebra almost invisible.In reference to the cause of the color of animals, plantsand fish we have now fully demonstrated that it is causedby the action of cells occupying the individuals, especiallyif they have eyes with which to take a picture of .the out-side surroundings, and transfer this to the skin cells, who 134 CELL INTELLIGENCE THE CAUSE OF EVOLUTION are in charge of the color business. The following is avery interesting article on this matter, altho it has beendemonstrated several times before, and in one case the
Text Appearing After Image:
Fig. 25.—Zebra. fish was able to produce a checker-board on his backwhen the bottom of his aquarium was painted in thatway. S. O. Mast of Johns Hopkins University has pub-lished in the Proceedings of the National Academy of THE LIVING STRUCTURES 135 Sciences, April, 1915, some results of observation andexperiments made at the U. S. Biological Station at Beau-fort, N. C. The work is to be published in full in the bul-letin of the U. S. Bureau of Fisheries. He says: Nearly all fishes simulate their environment to someextent and some flounders do so with remarkable accur-acy and rapidity. It was found that flounders in glassdishes became nearly white on a white ground and nearlyblack on a black ground. They also assumed approx-imately the colors of all grounds, except red. Fine andcoarse patterns in the ground produced correspondinglyfine and coarse patterns in the skin, but there was noactual reproduction of patterns. Five days sojourn in ablack pan was required to produce a maximum b

Note About Images