J. Michael Migel & Leonard M. Wright, The Masters on the Nymph, New York, Nick Lyons Books, Doubleday & Company, 1979, p. 42.
Archives du mot-clé symmetry
Ingenious little fellow
Georges F. Mason, Animal Homes, New York, William Morrow, 1947, pp. 87-88.
They exhibit a fine symmetry
Curtis C.F. Riley, « Some Phases of Spring Nature Study », School Sciences and Mathematics, Menasha Wisconsin, The Central Association of Science and Mathematics Teachers, vol. 18, juin, 1918, p. 544.
Choice of material
F. Martin Duncan, How Animals Work, Londres, T.C. & E. C. Jack, 1918, pp. 54-55.
The nature of the external adornment
Edwar Albert Butler, Pond life insects, Londres, Swan Sonnenschein Lowrey, 1886, p. 67-69.
They are amusing without being immoral
Charles Kingsley, The boys’ and girls’ book of science, Londres, Strahan & Co., 1881.
A complete collection
Henry Doddrige Gordon, The History of Harting, Londres, W. Davy & Son, 1877, pp. 364-365.
A true manufacturing process
Philip Henry Gosse, « Contribution to the History of the Rotifera, or wheel Animalcules, Part III, The Builders (Melicertadae) », The Popular Science Review, Londres, James Samuelson, 1862, p. 485.