Bell, Professor A. Graham, on teaching a dog to articulate, [128];

on the ideation of deaf-mutes, [150]

Belt on intelligence of ants, [52], [92]

Benfry on roots of Sanskrit, [267]

Berkeley on ideas, [21], [22]

Binet on analogies between perception and reason, [32]

and sensation, [37], [46]

Bingley on bees understanding tones of human voice, [124]

Bleek, on origin of pronouns, [302];

on the sentence-words of African Bushmen, [316], [337], [338];