INDEX. 



645 



er of sight, 32; on the color of 

 negro infants, 653; on the fond- 

 ness of savages for ornaments, 

 568; on beardless races, 575; on 

 the beauty of the English aristo- 

 cracy, 681. 



Layard, E. L.., on an instance of 

 rationality in a cobra, 348; on 

 the pugnacity of Gallus Stan- 

 leyl, 359. 



Laycock, Dr., on vital periodicity, 

 8; therold nature of Idiots, 35. 



Leaves, autumn, tints useless, 

 259. 



Lecky, Mr., on the sense of duty, 

 94; on suicide, 113; on the prac- 

 tice of celibacy, 115; his view of 

 the crimes of savages, 116; on 

 the gradual rise of morality, 121. 



Leconte, J. L., on the stridulant 

 organ in the Coprini and Dy- 

 nastini, 300. 



Lee, H., on the numerical pro- 

 portion of the sexes in the trout, 

 245. 



Leg, calf of the. artificially mod- 

 ified, 669. 



Legitimate and illegitimate chil- 

 dren, proportion of the sexes in, 

 239. 



Legs, variation of the length of 

 the, in man, 25; proportions of, 

 in soldiers and sailors, 31; front, 

 atrophied in some male butter- 

 flies, 274; peculiarities of, in 

 male insects, 275. 



Leguay, on the occurrence of the 

 inter-condyloid foramen in the 

 humerus of man, 21. 



"Lek" of the black-cock and cap- 

 ercailzie, 399. 



Lemoine, Albert, on the origin of 

 language, 84. 



Lemur macaco, sexual difference 

 of color in, 532. 



Iiemuridse, 148; ears of the, 15; 

 variability of the muscles in the, 

 40; position and derivation of 

 the, 153; their origin, 161. 



Lemurs, uterus in the, 37. 



Lenguas, disfigurement of the 

 ears of the, 570. 



Leopards, black, 535. 



Lepidoptera, 304; numerical pro- 

 portions of the sexes in the, 245; 

 coloring of, 305; ocellated spots 

 of, 422. 



Lepldosiren, 154, 160. 



Leptalides, mimicry of, 321. 



Leptorhynchus angustatus, pug- 

 nacity of male, 299. 



Leptura testacea, difference of 

 color in the sexes of, 296. 



Leroy, on the wariness of young 

 foxes in hunting-districts, 78; on 

 the desertion of their young by 

 swallows, 104. 



Leslie, D., marriage-customs of 

 Kaffirs, 593. 



Lease, valley of the, 21. 

 42 



Lesson, on the birds of paradise, 

 214, 397; on the sea-elephant, 524. 



Lessona, M., observations on 

 Serranus, 157. 



Lethrus cephalotes, pugnacity of 

 the males of, 294, 297. 



Leuckart, R., on the vesicula 

 prostatica, 23; on the influence 

 of the age of parents on the sex 

 of offspring, 239. 



Levator claviculse muscle, 40. 



Libellula, depressa, color of the 

 male, 2S8. 



Libellulidae, relative size of the 

 sexes of, 276; difference in the 

 sexes of, 287. 



Lice of domestic animals and 

 man, 165. 



Licentiousness, a check upon pop- 

 ulation, 45; prevalence of, 

 among savages, 115. 



Lichtenstein, on Chera progne, 

 413. 



Life, inheritance at corresponding 

 periods of, 223, 227. 



Light, effects on complexion, 31; 

 influence of, upon the colors of 

 shells, 260. 



Lilford, Lord, the ruff attracted 

 by bright objects, 407. 



Limosa lapponica, 472. 



Linaria, 455. 



montana, 243. 



Lindsay, Dr. W. L., diseases 

 communicated from animals to 

 man, 7; madness in animals, 77; 

 the dog considers his master his 

 God, 93. 



Linnaeus, views of, as to the po- 

 sition of man, 145. 



Linnet, numerical proportion of 

 the sexes in the, 243; crimson 

 forehead and breast of the, 388; 

 courtship of the, 395. 



Lion, polygamous, 214; mane of 

 the, defensive, 516; roaring of 

 the, 522. 



Lions, stripes of young, 458. 



Lips, piercing of the, by savages, 

 570. 



Lithobius, prehensile appendages 

 of the female, 271. 



Lithosia, coloration in, 311. 



Littorina littorea, 259. 



Livingstone, Dr., manner of sit- 

 ting of gorilla, 147; on the in- 

 fluence of dampness and dry- 

 ness on the color of the skin, 

 188; on the liability of negroes 

 to tropical fevers after residence 

 in a cold climate, 189; on the 

 spur-winged goose, 360; on wea- 

 ver-birds, 371; on an African 

 night-jar, 379, 397; on the bat- 

 tle-scars of South African male 

 mammals, 496; on the removal 

 of the upper incisors by the 

 Batokas, 569; on the perforation 

 of the upper lip by the Maka- 

 lolo, 570; on the Banyai, 574. 



