Reindeer, horns of the; battles of; horns of the female; antlers of, with numerous points; winter change of the; sexual preferences shown by.
Relationship, terms of.
Religion, deficiency of among certain races; psychical elements of.
Remorse, deficiency of, among savages.
Rengger, on the diseases of Cebus Azarae; on the diversity of the mental faculties of monkeys; on the Payaguas Indians; on the inferiority of Europeans to savages in their senses; revenge taken by monkeys; on maternal affection in a Cebus; on the reasoning powers of American monkeys; on the use of stones by monkeys for cracking hard nuts; on the sounds uttered by Cebus Azarae; on the signal-cries of monkeys; on the polygamous habits of Mycetes caraya; on the voice of the howling monkeys; on the odour of Cervus campestris; on the beards of Mycetes caraya and Pithecia Satanas; on the colours of Felis mitis; on the colours of Cervus paludosus; on sexual differences of colour in Mycetes; on the colour of the infant Guaranys; on the early maturity of the female of Cebus Azarae; on the beards of the Guaranys; on the emotional notes employed by monkeys; on American polygamous monkeys.
Representative species, of birds.
Reproduction, unity of phenomena of, throughout the mammalia; period of, in birds.
Reproductive system, rudimentary structures in the; accessory parts of.
Reptiles.
Reptiles and birds, alliance of.