Marey’s artificial wings, [233]

Membranous wings, [170]

Motion associated with the life and well-being of animals, [1]

Motion not confined to the animal kingdom, [2]

Motion, natural and artificial, [4]

Motion, of uniform, [17]

Motion uniformly varied, [17]

Muscles, their properties, mode of action, etc., [24]

Muscles arranged in longitudinal, transverse, and oblique spiral lines, [28]

Muscles, oblique spiral, necessary for spiral bones and joints, [31]