CHAPTER XXIV

The Treatment of Apes in

Captivity--Temperature--Building--Food--Occupation

In conclusion I deem it in order to offer a few remarks with regard to

the causes of death among these apes, and to say something regarding

the treatment of animals in captivity. We know so little and assume so

much concerning them that we often violate the very laws which we are

trying to enforce.

We have already noticed the fact that the gorilla is confined by

nature to a low, humid region, reeking with miasma and the effluvia of

decaying vegetation. The atmosphere in which he thrives is one in which

human life can hardly exist. We know in part why man cannot live in

such an atmosphere and under such conditions, but we cannot say with

certainty why the ape does do so. It would seem that the very element

that is fatal to man gives strength and vitality to the gorilla. We

know that all forms of animal life are not affected in the same way by

the same causes; and while it may be said in round numbers that what is

good for man is good for apes, that is not a fact.

The human race is the most widely distributed of any genus of mammals,

and, as a race, it can undergo greater extremes of change in climate,

food, or condition than any other kind of animal. Man’s migratory

habits, both inherent and acquired, have fitted him for a life of

vicissitudes, and such a life inures him, as an individual, to all

extremes. On the other hand, the gorilla, as a genus, is confined to a

small habitat, which is uniform in climate, products, and topography.

Having been so restricted to these conditions he is unfitted for any

radical change, and when such is forced upon him the result must always

be to his injury.

In certain parts of the American tropics there is found a rich gray

moss growing in great profusion in these localities and on certain

kinds of trees. It is not confined to any special level, but thrives

best on low elevations. Under favorable conditions it grows at

altitudes far above the surrounding swamps. Its character and quantity,

however, are measured by the altitude at which it grows. It is an

aërial plant, and it may be detached from the boughs of one tree and

transplanted upon those of another. It may be taken with safety to a

great distance, so long as an atmosphere is supplied to it that is

suited to its nature, but when removed from its normal conditions and

placed in a purer air it begins to languish and soon dies. If returned

in time, however, to its former place or one of like character, it will

revive and continue to grow.

What element this plant extracts from the impure air is unknown. It

cannot be carbonic acid gas, which is the chief food of plants, nor can

it be any form of nitrogen. It is well known that the plant cannot long

survive in a pure atmosphere. Whatever the ingredient extracted may

be, it is certain that it is one that is deadly to human life and one

that other plants refuse. Moisture and heat alone will not account for

it. We have another striking instance in the eucalyptus, which lives

upon the poison of the air around it. There are many other such cases

in vegetable life; and while the animal is a higher organism than the

plant, there are certain laws of life that obtain in both kingdoms and

involve the same principles.

Between the case of the gorilla and that of the plant there is some

analogy. It may not be the same element that sustains them both, but it

is possible that the very microbes which germinate disease and prove

fatal to man sustain the life of the ape in the prime of health. The

poison which destroys life in man preserves it in the ape.

The chimpanzee is distributed over a much greater range than the

gorilla and is capable of undergoing a much greater degree of change

in food and temperature. The history of these apes in captivity shows

that in that state the chimpanzee lives much the longer and requires

much less care. From my own observation I assert that all these apes

can undergo a greater range of temperature than of humidity. The latter

appears to be one of the essential things to the life of a gorilla.

One fatal mistake made in treating him is furnishing him with a dry,

warm atmosphere and depriving him of the poison contained in the

malarious air in which he naturally spends his life. Both of these apes

need humidity. In a dry air the chimpanzee will live longer than the

gorilla, but neither of them can long survive it; and it would appear

that a salt atmosphere is best for the gorilla.

I believe that one of these apes could be kept in good condition for

any length of time if he were supplied with a normal humidity in an

atmosphere laden with miasma and allowed to vary in its temperature. A

constant degree of heat is not good for any animal. There is no place

in all the earth where nature sustains a uniform degree of heat. We

need not go to either extreme, but a change is requisite to bring into

play all the organs of the body.

The treatment which I would recommend for the care of apes is to build

them a house entirely apart from that of other animals. It should be

eighteen or twenty feet wide by thirty-five or forty feet long, and at

least fifteen feet high. It should have no floor except earth, and that

should be of sandy loam or vegetable earth. In one end of this building

there should be a pool of water twelve or fifteen feet in diameter;

and, imbedded in mold under the water, there should be a steam coil

to regulate the temperature as may be desired. In this pool should be

grown a dense crop of water plants such as are found in the marshes of

the country in which the gorilla lives. This pool should not be cleaned

out nor the water changed; but the plants should be allowed to grow and

decay in a natural way. Neither the pool nor the house should be kept

at a uniform heat, but the temperature should be allowed to vary from

60° to 90°.

In addition to the things above mentioned, the place should be provided

with the means of giving it a spray of tepid water, which should be

turned on once or twice a day and allowed to continue for at least

an hour at a time. The water for this purpose should be taken from

the pool, but should never be warmer than the usual temperature of

tropical rain. The animal should not be required to take a bath in this

way, but should be left to his own choice about it.

The house should contain a thin partition that could be removed at

will, and the end of the building farthest from the pool should be

occupied by a strong tree, either dead or alive, to afford the inmates

proper exercise. The south side of the house should be of glass, and

at least half of the top should be of the same. These parts should

be provided with heavy canvas curtains, to be drawn over them so as

to adjust or regulate the sunlight. In the summer time the building

should be kept quite open, so as to admit the air and the rain. The

rule that strangers or visitors should not annoy or tease them should

be enforced without respect to person, time, or rank. No visitor should

be allowed on any terms to give them any kind of food. The reasons for

these precautions are obvious to any one familiar with the keeping of

animals; but in the case of the gorilla their observance cannot be

waived with impunity.

The ape does not need to be pampered. On the contrary, he should be

permitted to rough it. Half of the gorillas that have ever been in

captivity have died from overnursing. By nature they are strong and

robust if the proper conditions exist; but when these are changed they

become frail and tender creatures. They should not be restricted to

a vegetable diet nor limited to a few articles of food, but should

be allowed to select such things as they prefer to eat. I have grave

doubts as to the wisdom of limiting the quantity. One mistake is

often committed in the treatment of animals, and that is to continue

the same diet at all times and to limit that to one or two items. It

may be observed that the higher the form of organism the more diverse

the taste becomes. Very hardy animals or those of low forms may be

restricted to one kind of staple food. The higher form demands a change.

One thing above all others that I would inhibit is the use of straw

of any kind in the cage, for beds or for any other purpose. If it

be desired to furnish them with such a comfort, nothing should ever

be used but dead leaves, if they can be supplied. In their absence

a canvas mattress or wire matting should be used. There are certain

kinds of dust given off by the dry straw of all cereal plants. This is

deleterious to the health of man, but vastly more so to these apes.

It is taken into the lungs and through them acts upon other parts of

the body by suppressing the circulation and respiration. No matter

how clean the straw may be, the effect will be the same in the end.

Hay is less harmful than straw, but even the use of hay should not be

permitted.

Another thing which is necessary is to entertain or amuse the apes in

some way, otherwise they become despondent and gloomy. It is believed

by those who are familiar with these creatures that loneliness or

solitude is a fruitful cause of death. This is especially true of the

gorilla.

Another important fact, little known, is that tobacco smoke is usually

fatal to a gorilla. Every native hunter that I met in Africa testifies

that this simple thing will kill any gorilla in the forest if he is

subjected to the fumes for a sufficient time. I have reason to believe

that this is true. It may not invariably prove fatal, but it will be

so in many instances. The chimpanzee is not so much affected by it,

although he dislikes it. The gorilla detests it and shows at all times

his strong aversion to it. I have no doubt that this is one of the

reasons why these apes die on board the ships by which they are brought

from Africa.

Both of these apes are possessed, in a degree, of savage and resentful

instincts; but these are much stronger in the gorilla than in the

chimpanzee. The gorilla, therefore, requires firm and consistent

treatment. This can be used without severity or cruelty, but the

intellect of the gorilla must not be underrated. He studies with a keen

perception the motives and intentions of man, and is seldom mistaken

in his interpretation of them. He often manifests a violent dislike

for certain persons, and when this is discovered to be the case, the

object of his dislike should not be permitted in his presence, for the

result is to enrage the ape and excite his nervous nature. When he

becomes sullen or obstinate, he should not be coaxed or indulged, nor

yet used with harshness. He should either be left alone for a time or

be diverted by a change of treatment.

INDEX

“Aaron”

his intelligent expression, 144, 146, 147

his capture, 145

on the journey, 147, 148

his tricks, 148

” one aversion, 148, 149

” sympathy for Moses, 149-152

realization of death, 151, 152

loses his mate, 170

his illness and death, 172-174

“Aaron” with “Elisheba”

acts as a protector, 156

his reliance on human aid, 157, 158-159

driving the cow, 158, 159

we start for Liverpool, 159

the bogie on the steamer, 159

solicitude of the apes, 159-160

their ingenuity, 161

the ape in the mirror, 161-162

Aaron’s jealousy, 162-165

the rivals, 163-165

arrival at Liverpool, 167, 168

Elisheba’s illness, 168

Aaron again becomes nurse, 170

Abstract ideas in simians, Lack of, 20, 36

Affection in animals not mere instinct, 58-59, 173

Age of maturity in apes, 98, 191, 192

Amusement (of captives)

captives should have, 55-56, 283

means of, 20-21, 33, 35, 54-56

_Angola_, 268

Anthropoid or manlike apes (see also _Chimpanzee_, _Gorilla_,

_Gibbon_, _Orang_, and references under _Chimpanzee captives_)

the group, 3

superior intelligence, 35, 60

Apes (see also _Simians_ and references under _Anthropoid apes_)

resemblance to man, 2

described, 3, 92-98, 223 ff.

anthropoid or manlike group, 3

skeleton a duplicate of man’s, 4, 7

superior intelligence of anthropoid, 35, 60

travelers’ stories untrue, 71-72, 235-236, 266 ff.

do not act in concert, 268

Approval, Apes’ love of, 197, 203

Arboreal habit, The, 96-97, 224-225, 245

Baboon, The, 3, 14, 15, 196-197, 224, 266, 277

relative plane, 3, 277

Bailey, Mr. James A., New York City

his valuable apes, 190-191

corroborative testimony, 268

“Banquo,” 28-29

Battel, Henry (1590), 267, 268

_Batuna_ (plant), 77, 245

Bellevue Gardens, Manchester, England (see also _Consul II_)

Consul II, 193

a pugnacious ape, 198-200

chimpanzee and orang, 200

Borneo, 274

Buffalo (N. Y.) Museum, Specimens in, 104

Cage in the jungle, The

idea first conceived, 60

exceptional opportunities it afforded, 60, 71, 260

its construction, 62-64

its furniture, 64-66

date of occupancy, 71

length of occupancy, 71

my chimpanzee companion, 71

(see also _Moses_)

the native boy, 71, 120, 121, 125, 148-149

program for the day, 73 ff.

my menu, 73, 77, 79, 84

wild visitors, 75 ff., 186-190, 252-260

the tornado, 79 ff.

_Cameroon_ (valley), 85, 213, 215, 267

Capuchin monkey, The (see also under _Monkey_), 18-19, 28, 29, 38, 39,

42, 52

Care of simian captives

amusement of, 20-21, 33, 35, 54-56, 283

their short lives, 146, 200, 201

effects of confinement, 231

cannot live in pure air, 280, 281

condition compared to a certain

tropical moss, 279-280

humidity essential, 280-282

diet, 282-283

dust of straw injurious, 283

tobacco fatal to the gorilla, 283-284

Catarrhini, 3

“Caucasian of monkeys, The,” 35

Cebus monkey, The (see also under _Monkey_)

brown species, 17, 24, 42

experiments with, 17, 18

superior intelligence, 35

white-faced species, 42

_Charla_ (lake), 25

Charleston, S. C., Experiments at, 24 ff.

Cherry, Mr. William S., African traveler, 212

Chicago Gardens, Experiments at, 17, 29

“Chico”

his unusual size, 190

” scream, 241

” fear of an elephant, 268

_Chi Loango_ (river), 211, 218

Chimpanzee, The (see also _Kulu-kamba_, _Ntyigo_, and references

under _Chimpanzee captives_)

order of intelligence, 4, 60, 85, 99, 105-106

perception of number, 34

resemblance to man (see also _Skeleton_), 60-62, 92

in native haunts, 70, 71, 186-190

habitat, 85-87, 280

derivation and meaning of name, 86

two species, 86 ff.

described in detail, 92-98, 188

position in sleep, 96

longevity, 98

age of maturity, 98, 191, 192

breeding season, 98-99

social traits and government, 99-105

reasoning power and mental status, 105, 116, 206

does not bear captivity well, 146

pulmonary trouble common, 146

maladies resemble man’s, 186

seen from the cage, 186-190

climate of America favorable, 200-201

mode of attack, 237

scream and beating sound, 240-242

disposition, 250, 284

Chimpanzees, Speech of

extent of vocabulary, 108, 115, 136

number of words interpreted, 108, 115

pitch of voice, 108, 109, 111, 112, 116

vocal organs, 108-110

phonetic symbols invented by author, 109-113

method of producing sounds, 110-111

character and meaning of sounds, 112-115, 123, 125, 130, 135-137

quality of voice, 113

use of gestures, 114-115

possibility of development, 139

resemblance to human speech, 116

constant meanings of sounds, 136, 137

Chimpanzee captives, Some (see _Aaron_; _Elisheba_; _Sailor’s pet_;

_Village pet_; _Gaboon, captives at_; _Izanga_; _Chico_; _Johanna_;

_Consul II_; _Clever kulu_; _Five young kulus_; _Sally_)

Cincinnati Zoölogical Garden, Experiments at, 14, 28, 200, 241

Classification of simians, 2-4

Clever kulu, A

her color, 202

facial expression, 203, 206

love of approval, 203, 204

always in mischief, 204

unties complicated knots, 204-206

evidence of reasoning power, 206

Color, Simians’ perception of, 30-32, 35, 36, 139

Concrete ideas, Simians can express only, 36

_Congo_ (river), 66, 85, 191, 209, 211, 212, 216, 218, 241, 267, 268,

270, 272

Constant meanings of sounds in simian speech, 15, 18, 23, 135-137

“Consul II”

his remarkable sagacity, 193

rides a “bike,” 193

smokes a pipe, 193-195

draws with chalk or pencil, 195, 196

distinguishes three letters, 196

love of teasing, 196-197

aversion to being clothed, 197

loves approval, 197

attempts at burglary, 198

his keeper’s zeal, 198

Cranio-facial angles

of man, 8

” apes, 9

” monkeys, 9

” reptiles, 10

Cross, Dr., Liverpool, England

guardian of Aaron and Elisheba, 168, 172

Cruelty

unnecessary in hunting, 146

inherent in natives, 157, 184-185

Crystal Mountains, 211, 214

Cynocephalus, 266

“Darwin”

learns Puck’s sound for “food,” 43

Deaf-mutes, Method of teaching applied to simian speech, 110

Death, Apes’ realization of, 151, 152, 170, 259

Deemin, Mr. James, English trader, 223, 261

Descriptions of simians

of monkeys, 3, 224

” chimpanzee, 92-98, 224

” gorilla, 223 ff.

Development of “calf” a means of comparison, 227

Dexterity and ingenuity

of apes, 122, 126, 129, 130, 132, 161, 184, 193-198, 204-206

of monkeys, 56-57

Dialects (see _types_ under _Monkeys, Speech of_)

Dimension, Simians’ perception of, 30, 36

“Dodo”

Nemo’s apologetic speech, 47

her appeal to her keeper, 48-50

Drake, Mr. J. H., African traveler, 261

Drum, The (see _Kanjo_)

Du Chaillu, Paul, African traveler, 214, 272, 273

Early reports of apes (see _Ford_, _Savage_, _Wilson_, _Walker_,

_Hanno_, _Battel_, _Du Chaillu_)

“Elisheba” (see also _Aaron with Elisheba_)

where captured, 154

her shrewish temper, 154-156

her selfishness and perversity, 155-156

her champion and slave, 156, 162-165

a suitor rebuffed, 163-165

submissive only from policy, 166

her illness and death, 168-171

Eloquence of monkeys’ speech, 22, 47-50

Emotions, Simians display human

sympathy, 149-152, 170-171

aversion, 26, 148-149

sorrow, 50, 152, 170

jealousy, 46, 125, 162-165, 186

contempt, 203, 206, 250

affection, 58-59, 134-135, 173, 174

_Enjocko_, 268

Enumeration (see _Number, Perception of_)

_Esyira_ (tribe and country), 140, 144, 145, 218, 228, 267, 269

Ethics, Monkeys’ code of, 30

Etymology of native names, 232, 272

Evolution, 36

Expression (see also _Facial expression_)

defined, 13

speech a means of, 13

animals’ limit of, 13, 23

Facial expression of simians, 1, 16, 46, 47, 126, 146-147, 150, 162,

170, 182, 197, 202-204, 206, 207, 229

Falkenstein, Dr., 267

Ferocity of apes exaggerated, 229, 235-236

_Ferran Vaz_ (lake), 66, 144, 149, 219, 228, 270

_Fiote_ (tribe and language), 86, 267

Five young kulus, 207-210

Food

of chimpanzee, 106-107, 128-129, 132

of gorilla, 245-246

Ford, Dr., African traveler, 214, 217

Form, Simians’ perception of, 30, 139, 196

Fort Gorilla, 71

_Gaboon_ (town and river), 66, 153, 155, 182, 211, 214-217, 268, 272

Gaboon, Some captives at, 182 ff.

their table manners, 182-184

their love of beer, 183-184

their dexterity, 184

maladies resemble man’s, 186

Gibbon, The

order of intelligence, 4

arboreal habit, 96, 276

size and activity, 275-276

skeleton, 276

can stand erect, 276

wonderful leaping power, 276

several known species, 277

vocal qualities, 277

Glave, E. J., African traveler, 241

Goode, Rev. A. C., late missionary at Batanga, 272

Gorilla, The

order of intelligence, 4, 211, 232

resemblance to man, 60

in native haunts, 70, 71

seen from the cage, 71, 77-78, 186, 252-260

his scream and beating sound, 84, 109, 237-242

arboreal habit, 96-97, 224-225, 245

nomadic, 97, 233

habitat, 211 ff., 273, 278-279

early reports of (see references under _Early reports_)

skeleton, 218-223

described in detail, 223 ff.

cannot walk erect, 225

the “calf” as means of comparison, 227

species, 228, 274

compared with other apes and with man, 228-231

social traits and government, 231 ff.

derivation of name, 232

in council, 234

ferocity exaggerated, 235-236, 262, 273

mode of attack, 236-237

sounds wrongly attributed to, 109, 240-242

method of carrying young, 242, 259

disposition, 242, 250-251, 284

food, 245-246, 282-283

stealthiness, 253, 262

calling sound, 254

difficult to find, 260-263

only one ever brought to America, 263

a wild gorilla takes his own photograph, 264-265

care in captivity, 278 ff.

Great forest, The, 68

Guinea, Gulf of, 85, 266

Habitat

of gorilla, 211 ff., 273, 278-279

of chimpanzee, 85-87, 280

of orang, 274

of gibbon, 276

Handmann, Mr. Otto, German consul at Gaboon, 182

Hanno, 500 B.C., earliest mention of the ape, 266-267

Harris, Captain, African traveler, 217

Harvard Medical School Collection, 6

Hornaday, W. T., authority on orang, 275

Human faculties, embryo of all, exists in simians, 37

_Ikomba njina_, 232, 234, 235

_Inenga_ (lake), 218

Ingenuity of simians (see _Dexterity_)

_Izanga_ (lake), 184, 212, 223

an unhappy captive at, 184-185

an act of mercy, 185

“Jack,” 25

“Jennie,” 27

“Johanna”

her value for scientific use, 190, 192

probable age, 191

size, 191

intellectual plane, 192

“Jokes” 24 ff.

his fright, 24

the reconciliation, 26

Journeys in the jungle

to the chimpanzee country, 66

a five days’ journey on foot, 148

to the coast, 153

Jungle, the African

described, 66-70, 153

daily life in, 73 ff.

the quiet hour, 77

a tornado, 79 ff.

_Kabinda_ (town), 191

_Kanga ntyigo_

etymology of the name, 272

_Kanjo_, The, 102-104

the drum, 104, 241

Keller, Helen

with Nellie, 52-53

_Kisanga_ (valley and river), 212

_Komo_ (river, also name of gunboat), 153, 213, 217

_Kongo_, 272

_Kulu-kamba_ (see also under _Chimpanzee_, and references under

_Chimpanzee captives_)

its habitat, 87

described and compared with _ntyigo_, 87-91

Moses’ successor, 144

highest type of all apes, 202, 210

name applied to different types, 270

_Lamberene_ (town), 270

Lemur, 2, 224

relative plane, 2, 277

_Loango_ (valley), 192, 211, 267, 269

Longevity of chimpanzee, 98

Lopez, African explorer, 270

Lopez, Cape, 153, 270

_Mafuka_, 269, 274

Maladies of simians

pulmonary trouble common, 146

resemble man’s, 186

Malay Peninsula, 276

Mandrill, The, 14

_Mayumba_ (town), 215, 216, 268

_M’Bouve_, 272

“McGinty”

his jealousy, 45, 46

Meanings of certain sounds in simian speech (see also under _Monkeys,

Speech of_, and _Chimpanzees, Speech of_)

sound meaning “food,” 19, 28, 29, 43, 112-113

sound meaning “drink,” 19, 28, 29

sound meaning “warning,” 14, 20, 27, 113

sound meaning “alarm,” 24, 27, 113

sound meaning “friendship,” 113

sound meaning “good,” 160, 181

calling sound, 112-113, 136

Mental power and status of simians (see also under _Ape_,

_Chimpanzee_, _Monkey_, _Gorilla_, “_Aaron_,” “_Moses_,” etc.)

compared to man, 105

compared to the dog, 116

Menu, My daily, 73, 77, 79, 84

Mesial crest (see _Gorilla, Skeleton of_)

“Mickie”

the boss of the school, 45-46

his tricks, 46

Middle forest, The, 68

Mirror, Experiments with, 40-41, 161-162

Mode of attack

of chimpanzee, 237

of gorilla, 236-237

_Moiro_, 217

Monkey, The (see also _Simians_)

human appearance, 1

relative plane, 2, 277

relationship to man, 2, 277

all simians not monkeys, 2-3

described, 3, 224

old world and new world, 3

cranio-facial angles, 9

Cebus species (see _Cebus_)

Capuchin species (see _Capuchin_)

perception of sound, color, form, dimension, quality, number, music,

etc., 30-37

code of ethics, 30

Rhesus species (see _Rhesus_)

difference in traits and tastes, 35

express emotion, 50

affection not mere instinct, 58-59

Monkeys, Laughter of, 38, 54-55

Monkeys, Speech of

study of, 14 ff.

poor success of first efforts, 15

sound meaning “alarm” or “warning,” 14, 20, 24, 27

phonograph first used, 16-18

sounds have constant meanings, 15, 18, 23

number of sounds interpreted, 18

sounds described, 19-20

speech monophrastic and monophonetic, 19, 44

pitch of voice, 20, 28, 50

resemblance to human speech, 20, 22-23

each species has its own speech, 23, 44

sign of surrender, 25 ff.

sound meaning “food,” 19, 28, 29

sound meaning “drink,” 19, 28, 29

musical quality of voices, 19, 25, 45, 47, 50, 53, 57

eloquence, 22, 47-50

types of speech and inflections, 23, 42, 60

“Moses”

my sole companion in the cage, 71

his breakfast, 73

his amusements, 73, 120, 122-124

his siesta, 77, 124

position in sleep, 96

learns a word of human speech, 115-116, 137-138

his capture, 117-118

his moral training, 118, 120-121, 130-132

his tricks, 120-121, 123-124, 131

dexterity and ingenuity, 122, 126, 129-130, 132-133

reading the newspaper, 123

his jealousy and temper, 125, 186

our walks in the jungle, 125

understood rights of possession, 125, 128

preferences in food, 128, 129, 132

meaning of sounds, 123, 125, 135-137

his quick vision, 125

a severe lesson, 131-132

reasoning power, 133

his devotion, 134-135

perception of form, color, music, etc., 139

he signs a legal document, 139-140

last illness, 140-142, 149-151

his chimpanzee nurse, 149-152

his death, 142, 151, 152

his claims to fame, 143

_Mpongwe_, 86

Music, Simians’ perception of, 35-36

Native explanation of relationships, 269-270

Native reports unreliable, 215, 231

_Nazavine_ (bay), 270

“Nellie”

her love of companionship, 20, 22

warns me of danger, 21 ff.

her perception of sound, 22

with Helen Keller, 52-53

her ingenuity, 56-57

“Nemo”

his diplomacy, 47

his abject apology, 47-48

_Nenge Nenge_ (town), 214

New world monkeys, 3

their superior intelligence, 35

New York Zoölogical Gardens, Experiments at, 45-51

_Nguni_ (river), 154, 211, 213, 218

“Nigger,” 45, 51

_Njina_, 228, 267, 269, 270

_Njole_ (town), 213

_Nkami_ (tribe, lake, and river), 66, 144, 212, 218, 272

_Noogo_ (river), 144

Nose a distinguishing feature, The, 3

_Ntcheego_, 268

_Ntyigo_ (see also under _Chimpanzee_)

its habitat, 87

described, 87-90

compared with _kulu-kamba_, 90-91

distinguished from _ntyii_, 228

_Ntyii_, 223, 228, 267, 269-270

_Ntyi-ne-nye-ni_ (village), 144

Number, Perception of

by simians, 32-34, 36

by birds, 34

_Ogowé_ (river, delta, and basin), 66, 117, 202, 211, 213, 214, 215,

217, 218, 223, 272

Old world monkeys, 3

Orang, The

order of intelligence, 4

arboreal habit, 97

a captive at Bellevue, 200

compared, 274, 275

_Orungu_ (tribe), 215

“Othello”

place of capture, 221

absence of humor, 244

illness and death, 247-249

with Moses, 249, 250

his speech sounds, 251

Owen, Sir Richard, writer on Africa, 215

Parrot Island, 214

Paternal instinct in animals, 100

“Pedro”

his troubles, 38

appreciation of kindness, 38

recording his sounds, 38, 39

his tale of woe, 39, 41

speech repeated to Puck, 39-41

Philadelphia Museum of Zoölogy, Specimens at, 217

Phonograph as a means of recording speech of monkeys, 15 ff.

first experiments, 16 ff.

behavior of monkeys on hearing, 16-18

speech and reply recorded, 18

Pedro’s speech recorded, 38

experiment with Puck, 39-41

Pitch of voice

in monkeys, 20, 28

in apes, 108, 109, 111-112

Platarrhini, 3

_Pongo_, 267, 269

Program, A day’s, 73 ff.

“Puck,” his perplexity on hearing phonograph, 39-41

Quality, Simians’ perception of, 30

Quantity, Simians’ perception of, 32

Reasoning power in simians, Evidences of, 16-18, 33-34, 36, 37, 105,

133, 161, 206

Records of speech sounds (see _Phonograph_)

_Rembo_ (river), 144, 218

Resemblances between simians and man

in body, 1, 2, 4-8, 60, 92, 186, 277

in speech, 20, 22-23, 116

in affections, 58-59, 173, 174

Rhesus monkey, 32

Romanes, Professor

experiments with chimpanzee, 34

experiments with “Sally,” 241

Sacrum (see _Skeleton_)

Sagittal ridge (see _Gorilla, Skeleton of_)

Sailor’s pet, A

his suit rejected, 163-165

“Sally,” 241

“Sally Jones,” 244

Savage, Dr., African traveler, 213, 214, 216

Scream of gorilla and chimpanzee, 84, 109, 237-242

_Sette Kama_ (town), 144, 212

Sheldon, Mrs. M. French, African traveler, 25

Sierra Leone, 266

Simians (see _Apes_, _Monkeys_, etc.)

wide range of types, 2

different forms described, 3

two grand divisions, how distinguished, 3

Simian speech (see _Monkeys, Speech of_, and _Chimpanzees, Speech of_)

Size of apes, 96, 190, 191, 221, 230

Skeleton, The

as basis of comparison, 4

chief point of difference, 4

sacrum, peculiarities of, 4-6, 8

vertebræ, number of, 5-6

causes of difference in sacrum and vertebræ, 6

sternum, differences in, 6, 7

skull, differences in, 8

general comparison, 7-8

of gorilla, 218-223

of gibbon, 276

Smithsonian Institution, Experiments at, 15 ff., 38

Snapshot, A unique, 264-265

Social traits and government

of chimpanzee, 99-105

of gorilla, 231 ff.

_Soko_, 270

Speech defined, 12

Speech of animals (see also _Monkeys, Speech of_, and _Chimpanzees,

Speech of_)

author’s interest in, 12

grounds of belief in, 12, 13

vocabularies limited, 13

can express what they conceive, 13, 23

development of interest, 14

Spider-monkey, 38

Stanley Pool, 216

Steckelman, Carl, African explorer, 216

Sternum (see _Skeleton_)

Stories of travelers and writers often untrue, 71-72, 235-236,

261-263, 267, 268, 273

Strohm, Mr. Adolph, trader at Gaboon, 154, 158

Sumatra, 274

Threadbare story, A, 262, 273

Tornado in the jungle, 79 ff.

Translations of native reports, Literal, 269, 270

Troglodytes, 267

_Tyimba_ (village), 144

Under forest, The, 68

University of Toronto Collection, 249

Village pet, A

the children’s playmate, 175-178

understood names and commands, 179

brought water and wood, 179-180

brought persons named, 180-181

price double that of a slave, 182

Vocabularies of animals (see _Speech of Animals_; _Monkeys, Speech

of_, and _Chimpanzees, Speech of_)

Walker, Dr., revises Wilson’s lexicon of native language, 216

Wallace, Mr. Alfred R., authority on orang, 275

Webber, Mr., keeper of ape at Bellevue

his success in training, 198

Wild visitors to the cage, 75 ff., 81-82, 186-190, 252-260

did not usually evince fear, 253

retreated in good order, 253, 255, 258

Moses frightens one away, 254

a gorilla beckons, 255

a narrow escape, 256-258

an exceptional opportunity, 258-259

a brave baby, 260

a gorilla takes his own photograph, 264-265

Wilson, Dr., first missionary at Gaboon

wrote lexicon of native language, 216

Wurmb, Baron, 267

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