INDEX. 787 



Strutliers, Dr., on the occurrence of the supra-condyloid foramen 

 in the htiraerus of man, 23. 



Sturndla Itidondana, pugnacity of the male, 417. 



Sturnus vulgaris, 464. 



Sub-species, 199. 



Suffering, in strangers, indifference of savages to, 133. 



Suicide, 155; formerly not regarded as a crime, 132; rarely prac- 

 ticed among the lowest savages, 133. 



Suidse, stripes of young, 529. 



Sulivan, Sir B. J., on speaking of parrots, 96; on two stallions 

 attacking a third, 571. 



Sumatra, compression of the nose by the Malays of, 665. 



Sunnier, Archb., man alone capable of progressive improve- 

 ment, 89. 



Sun-birds, nidification of. 517. 



Superciliary ridge in man, 634, 636. 



Supernumerary digits, more frequent in men than in women, 253; 

 inheritance of, 262; early development of, 268. 



Superstitions, 164; prevalence of, 138. 



Superstitious customs, 108. 



Supra-condyloid foramen in the early progenitors of man, 182. 



Suspicion, prevalence of, among animals, 78. 



Swallow-tail butterfly, 354. 



Swallows deserting their young, 122, 128. 



Swan, black, wild, trachea of the, 424; white, young of, 550; red 

 beak of the, 559; black-necked, 562. 



Swans, 559, 562; young, 548. 



Swnysland, Mr., on the arrival of migratory birds, 240. 



Swifts, migration of, 122, 



Swinhoe, li., on the common rat in Formosa and China, 91; 

 behavior of lizards when caught, 403; on the sounds produced by 

 the male hoopoe, 427; on Dicrarus macrocercus and the spoonbill, 

 524; on the young of Ardeola, 534; on the habits of Turnix, 542; on 

 the habits of Rhynchcea bengalensis, 543; on Orioles breeding in 

 immature plumage, 552. 



Sylvia atricnpilla, young of, 554; sylma cinerea, aerial love-dance 

 of the male, 432. 



Sympathy, 152; among animals, 115; its supposed basis, 120. 



Sympathies, gradual widening of, 139. 



Syngnathous h'shes, abdominal pouch in male, 185. 



tiyplieotides auritus, acuminated primaries of the male, 429; ear- 

 tufts of. 436. 



Tabunidse, habits of, 235. 



'1'adorna varieyata, sexes and young of, 546; tadorna vutpan- 

 ser, 471. 



Tahitiuns, 164; compression of the nose by the, 665. 



Tail, rudimentary, occurrence of, in man, 25; convoluted body in 

 the extiemity of the, 25; absence of, in man and the higher apes, 65; 

 variability of, in species of Mncacux and in baboons, 65; presence of, 

 in the early progenitors of man, 182; length of, in pheasants, 507, 

 513, 514; difference of length of the, in the two sexes of birds, 513. 



Tail, Lawsoii, on the effects of natural selection on civilized 

 nations, 151. 



