METHOCA. 
INDEX. 
MONSTROSITIES. 447 
Methoca ichneumonides, large male of, 
i. 347. 
Meves, M., on the drumming of the 
snipe, ii. 63. 
Mexicans, civilisation of the, not 
foreign, i. 183. 
Meyer, on a convoluted body at the 
extremity of the tail in a Macacus 
and a cat, i. 30. 
Meyer, Dr. A., on the copulation of 
phryganida) of distinct species, i. 
342. 
Migrations of man, effects of, i. 135. 
Migratory instinct of birds, i. 79; 
vanquishing the maternal, i. 83, 90. 
Mill, J. S., on the origin of the moral 
sense, i. 71 ; on the ‘‘ greatest hap- 
piness principle,” i. 97 ; on the dif- 
ference of the mental powers in the 
sexes of man, ii. 328. 
Millipedes, i. 339. 
Milne-Edwards, H., on the use of 
the enlarged chela of the male Ge- 
kishmis, i. 331. i 
Milvago leucunis, sexes and young of, 
ii. 205. 
Mimickry, i. 411. I 
Mimus polgglottus^ ii. 109. | 
Mind, difference of, in man and the | 
highest animals, i. 104 ; similarity 
of the, in different races, i. 232. 
Minnow, proportion of the sexes in | 
the, i. 308, 309. | 
Minnows, spawning habits of, ii. 15. 
Mirror, larks attracted by, ii. 112. 
Mivart, St. George, on the reduction 
of organs, i. 18 ; on the ears of the 
lemuroidea, i. 23 ; on variability of 
the muscles in lemuroidea, i. 128, 
136 ; on the caudal vertebra3 of | 
monkeys, i. 150 ; on the classihca- , 
tion of the primates, i. 196 ; on the 
orang and on man, i. 197 ; on dif- 
ferences in the lemuroidea, i. 198 ; 
on the crest of the male newt, ii. 24. 
Mocking-thrush, partial migration ’ 
of, ii. 109 ; young of the, ii. 219. 
Modifications, unserviceable, i. 153. 
Moles, numerical proportion of the 
sexes in, i. 305 ; battles of male, ii. 
239. 
MolUenesia petenensis, sexual differ- 
ence in, ii. 9. 
Mollusca, beautiful colours and 
shapes of, i. 326 ; absence of secon- 
dary sexual characters in the, i. 
324. 
Molluscoida, i. 205, 324. 
Monacanthus scopas and M. Feronti,. 
sexual differences in, ii. 12. 
Mongolians, perfection of the senses 
in, i. 119. 
Monkey, protecting his keeper from 
a baboon, i. 78, 87; bonnet-, i. 192 
rhesus, sexual difference in colour 
of the, ii. 293, 310 ; moustache-, 
colours of the, ii. 291. 
Monkeys, liability of, to the same 
diseases as man, i. 11 ; male, recog- 
nition of women by, i. 13 ; revenge- 
taken by, i. 40 ; maternal affection 
in, i. 40 ; variability of the faculty 
of attention in, i. 44 ; using stones 
and sticks, i. 51 ; imitative faculties 
of, i. 56 ; signal-cries of, i. 57 ; sen- 
tinels posted by, i. 74 ; diversity of 
the mental faculties in, i. 110; 
mutual kindnesses of, i. 75 ; hands 
of the, i. 139, 140 ; breaking hard 
fruits with stones, i. 140 ; basal 
caudal vertebrie of, imbedded in the- 
body, i. 151 ; human characters of, 
i. 191 ; gradation of species of, 
i. 227 ; beards of, ii. 283 ; orna- 
mental characters of, ii. 306 ; ana- 
logy of sexual differences of, with 
those of man, ii. 318; different 
degrees of difference in the sexes of,. 
ii. 323 ; expression of emotions by, 
ii. 336 ; generally monogamous 
habits of, ii. 361 ; polygamous^ 
habits of some, ii. 362 ; naked sur- 
faces of, ii. 376; American, mani- 
festation of reason in, i. 47 ; Ameri- 
can, direction of the hair on the 
arms of some, i. 192. 
Monogamy, not primitive, i. 182. 
Monogenists, i. 228. 
Mononyclius pseudacori^ stridulation, 
of, i. 382. 
Monotremata, i. 202; development 
of the nictitating membrane in, 
i. 23 ; lactiferous glands of, i. 209 
connecting mammals with reptiles, 
i. 213. 
Monstrosities, analogous, in man 
and lower animals, i. 113; caused 
by arrest of development, i. 121; 
