The arachnid anatomical terms (mentioned in the beginning of chapter nine) and other information that White used, came mostly from American Spiders by Willis J. Gertsch and The Spider Book by John Henry Comstock, both of which combine a sense of poetry with scientific fact.
De anatomiske begreber (så som dem der nævnes i begyndelsen af kapitel ni) og andre informationer, som White brugte, kom mest fra American Spiders af Willis J. Gertsch og The Spider Book af John Henry Comstock, der tilsammen giver en vis poesi af videnskabelige fakta.