SCllOOLCUAl'l. 



INDEX. 



SEMNOPITHECCS. 



675 



of the male musk-duck of Guiana, 

 362 ; on the courtship of Eupicola 

 crocea^ 395. 



Stnoolcraft, Mr., on the difficulty of 

 fashioning stone implements, 49. 



Snhweinfurth, complexion of negroes, 

 556. 



Sciccna aquila, 347. 



Sclater, P. L., on modified secondary 

 wing-feathers in the males of Pipra^ 

 378'; on elongated feathers in 

 nightjars, 384; on the species of 

 Cnasmorhynchus, 385 ; on the plu- 

 mage of Pelecanus onocivtaius, 

 393 ; on the plantain-caters, 460 ; 

 on the sexes and young of 'J'adorna 

 variegata, 479 ; on the colours of 

 Lemur rfmcaco, 537 ; on the stripes 

 in asses, .548. 



Scolecida, absence of secondary sexual 

 characters in, '260. 



Sixlopax frcnata, tail-feathers of, 

 377. 



gallwago, dnimming of, 376. 



javensis^ tail-feathers of, 377. 



major, assemblies of, 405. 



Wihonii, sound produced by, 



377. 



Scoli/tus, stridulation of, iiO'2. 



Scoter-duck, black, sexuiil difference 

 in coloration of the, 491 ; briglit 

 beak of male, 491. 



Scott, Dr., on idiots smelling their 

 food, 36. 



, J., on the colour of the beard 



in man, 558. 



Scrope, on the pugnacity of the male 

 salmon, 332; on the battlcb of 

 stags, 601. 



Scudd'er, S. H., imitation of the 

 stridulation of the Orthoptera, 

 283 ; on the stridulation of the 

 AiridiidiE, 286 ; on a Devonian in- 

 sect, 289 ; on stiidulation, 566. 



Si ulpture, expi'ession of the ideal of 

 beauty by, 581. 



S'a-anemonies, bright colours of, 260. 



Sea-bear, polygamous, 218. 



Sea-elephant, male, structure of the 

 nose of the, 527 ; polygamous, 218. 



Sea-lion, polygamous, 218. 



Seal, bladder-nose, 528. 



Seals, their sentinels generally fe- 

 males, 100 ; evidence furnished by, 

 OL classification, 150; polygamous 



habits of, 218 ; battles of male, 

 500 ; canine teeth of male, 502 ; 

 sexual difierences, 515; pairing of, 

 522 ; sexual peculiarities of, 528 ; 

 in the coloration of, 534; apprecia- 

 tion of music by, 569. 



Sea-scorpion, sexual differences in. 

 .«37. 



Season, changes of colour in birds, in 

 accordance with the, 390 ; changes 

 of plumage of birds in relation to, 

 462. 



Seasons, inheritance at corresponding, 

 230. 



Sebitaani, African chief, trying to 

 alter a fashion, 575. 



Sebright Bantam, 238. 



Secondary sexual characters, 207 ; 

 relations of polygamy to, 217 ; 

 transmitted through both sexes, 

 226 ; gradation of, in birds, 430. 



Sedgwick, W., on hereditary tendency 

 to produce twins, 45. 



Seemann, Dr., on the different appre- 

 ciation of music bydiiferent peoples, 

 570; on the efiects of music, 571. 



Seidlitz, on horns of reindeer, 506. 



Hetaspliorus platycercus, acuminate 

 first primary of the male, 378. 



Selby, P. J., on the habits of the 

 black and red grouse, 219. 



Selection, double, 225. 



of male by female birds, 404, 



421. 



, methodical, of Prussian grena- 

 diers, 29. 



, sexual, explanation of, 209, 213. 



220 ; influence of, on the colour- 

 ing of Lepidoptera, 321. 



, sexual and natural, contrasted, 



226. 



Self-command, habit of, inherited, 

 115 ; estimation of, 118. 



Self-consciousness, in animals, 83, 



Self-preservation, instinct of, 112. 



Self-sacrifice, by savages, 111; est i- 

 mation of, 118. 



Semilunar fold, 17. 



Seinnopithecus, 154 ; long hair on the 

 heads of species of, 150, 604. 



ckrysoTnelaSj sexual differences 



of colour in, 537. 



cojnatus, ornamental hair on the 



he.id of, 549. 



frmtaius, beard, &c., of, 5.50. 



