Design in nature : illustrated by spiral and other arrangements in the inorganic and organic kingdoms as exemplified in matter, force, life, growth, rhythms, &c., especially in crystals, plants, and animals / With examples selected from the reproductive, alimentary, respiratory, circulatory, nervous, muscular, osseous, locomotory, and other systems of animals, by J. Bell Pettigrew. Illustrated by nearly two thousand figures, largely original and from nature.

Licence: In copyright

Credit: Design in nature : illustrated by spiral and other arrangements in the inorganic and organic kingdoms as exemplified in matter, force, life, growth, rhythms, &c., especially in crystals, plants, and animals / With examples selected from the reproductive, alimentary, respiratory, circulatory, nervous, muscular, osseous, locomotory, and other systems of animals, by J. Bell Pettigrew. Illustrated by nearly two thousand figures, largely original and from nature. Source: Wellcome Collection.