Man and Gorilla, [161]
Man, origin of, [144]
Man and the Apes, [165]
Man's Place in Nature, [147], [148]
Manes and Manicheism, [265]
Mantle of molluscs, [58]
Manual of the Anatomy of Invertebrated Animals, [175]
Manual of the Anatomy of Vertebrated Animals, [175]
Marine embryos, [176]
Marmosets, [163]