INDEX 



Abdominal pregnancy, 422 

 Abortive foetus, 422 

 Acanthocephala, 373 

 Adolescence, 442, 443 



period of, compared with other mammals, 445 

 Ages of whales, 394, 446-53, 460, 461 

 Analysis of catches of w-hales, 456, 457 



of milk, see Appendix I 

 Annual migrations, evidence for, 379, 412, 413 



Bacteria in scars on blubber, 375, 377 

 Balaena aiistralis, 272 

 Balaenoptera, species of, 271, 272 

 Baleen, 266 



Blue whales, 313-16 



Fin whales, 355-8 



growth of, 315,355.431-3 

 Barnacles, see Parasites 

 Birth, length at, 428 

 Birth-rate, 466 

 Births, frequency of, 429 

 Blubber, 267, 364-72 



fat content, 364 



oil content of, see Appendix II, p. 476 



pits in, 374-9 



scars on, 373-9, 446, 447 

 Blubber thickness, and length of whale, 365-7 



monthly average, 368-72 



in pregnancy and lactation, 372 



seasonal changes in, 368-72 

 Blue whale season, 459 

 Blue whale unit, 364 

 Blue whales, 271, 272-321 



baleen, 313-16 



colour, 311-13 



external characters, 272-321 



external proportions, 275-311 



hair, 319-21 



measurements, mean values of, 276-95 



oil, yield of, 272 



sex-ratio, 274 



sexes, relative sizes of, 275 



size, 273 



variations of bodily proportions, 295-31 1 



ventral grooves, 317-19 

 Bottlenose whale, 272, 473 

 Breeding (and growth), 412-53 



previous work on, 413-15 



season, 420-7, 442, 464 



sources of information on, 412-15 

 Bryde's whale, 272, 375, 378 



Ca'aing whale, 272 

 Calf, growth of, 431-6 



length at birth, 428 



length at weaning, 431-3 



Callorhynchus, 379 



Catches of whales, analysis of, 456, 457 



fluctuations of, 456-63 

 Clitoris, 380, 381 

 Cocconeis, 373 

 Coition, 382, 390 

 Colour, 266 



Blue whales, 311-13 



Fin whales, 342, 353-5 

 Conchoderma auritum, 373 



virgatum, 373 

 Copulation, see Coition 

 Corona (scar of rupture of follicle), 387 



Coronu/a, 273^ 377 



Corpus luteum, 268, 387 et seq. 



and age of whales, 394, 396, 446, 447, 449-52 



formation of, 387 



frequency of numbers of, 450, 451 



of ovulation, 389-90, 421, 449-51 



of pregnancy, 387-9 



persistence of, 390-6 



retrogression of, 391 



subsequent to parturition, 390-6 

 Curve of growth, see Growth 

 Cyamus, 373 



Dclphimis phocaena, 473 

 Diatoms, film of, 267, 365, 372, 373 

 Dioestrous cycle, 396, 427, 450 

 Distribution of whales, 453, 458 



Ectoparasites, 373 

 Ecuador, whaling at, 260, 375, 379 

 Embryos of whales, 421, 424 

 Epiphyses, vertebral, 268, 446-8 

 Euphausia superba, 361-363, 453 



recurva, 361 



lucens, 361 

 Eiithemisto, 361 

 Expectation of life, 466 

 External characters, 271-360 

 External genitalia, 267, 379, 380, 428 

 External parasites, 267, 373-9 

 External proportions, Blue whales, 275-311 



Fin whales, 322-42 



Factory ship, see Floating factory 



Faeces, 432 



Fat content of blubber, 364 



of milk, 473,474 

 Fin whale season, 459 

 Fin whales, 271, 321-60 



baleen, 355-8 



colour, 342, 353-5 



external characters, 321-60 



external proportions, 322-42 



36 



