538 



INDEX 



Fin whales (cotit.) 



hair, 359-60 



measurements, mean values of, 323-39 



oil, yield of, 321 



sex-ratio, 321, 322 



sexes, relative sizes of, 322 



size, 321 



variations of bodily proportions, 340-52 



ventral grooves, 358-60 

 Fish, as food of whales, 361 

 Flensing platform, 261, 262 

 Flensing, process of, 262, 263 

 Floating factories, 261, 262 

 Foetus, abortive, 422 



average monthly lengths of, 422 



early development of, 426, 446 



growth of, 422 et seq. 

 Foetuses, number examined, 422 

 Follicles, Graafian, 385-9, 421 

 Food, 360-4 



distribution of, 462 

 Future work, 466 



Genitalia, external, 267, 379, 380, 428 



internal, 267, 382-412 

 Gestation, compared with other mammals, 445 



growth of foetus during, 422 et seq. 



period of, 413, 414, 428, 430, 465 

 Globicephala melaena, 272 

 Graafian follicles, see Follicles 

 Grampus, 272 

 Greenland shark, 378 

 Grey whale. Pacific, 414, 445 

 Growth after sexual maturity, 394, 449 

 Growth, differential rates of, 434 



during adolescence, 436-44 



during gestation, 422 et seq. 



during lactation, 433-6 



mean curve of, 422-6, 434-6, 442-5 

 Growth of baleen, 315, 355, 431-3 



of the calf, 428, 431-6 



of the foetus, 422 et seq. 



Hair, 266 



Blue whales, 319-21 



Fin whales, 359, 360 

 Heat in whales, 380 



Humpback whale, 271, 272, 361, 401, 414, 430, 431 

 Hyperoodon, 272 



Ice, influence of, 461, 462 

 Immature whales, ratio of, 418, 419, 464, 466 

 Internal genitalia, 267, 382-412 

 Intestines, examination of, 268, 362 



Killer-whale, 272, 466 

 Krill, 361-3,431,432,454 



Lactating females, occurrence of, 434, 436, 456, 457, 

 462 



Lactating females (cont.) 



pregnancy among, 430, 431 



segregation of, 433, 436, 462 

 Lactation, 402-5 



growth during, 433-6 



period of, 431, 433, 436 

 Laemargus, 378 



Length frequencies of whales, 437-42, 444 

 Lesser Rorqual, 272 

 Log books, 268 



Mammary glands, 267, 401-5 



anatomy, 401, 402 



histology, 402-5 

 Marine Biological Station, 259, 261 

 Material and data, 269-71 

 Maturity, full (physical), 295, 415, 447, 449 

 Maturity, sexual, 415-19, 455 



age of whales at, 443 



determination of, 415-18 



size of whales at, 417 

 Measurement of the blubber, 267 



of the corpora lutea, 268 



of the penis, 267 



of the testis, 267 

 Measurement series, 265, 266 



Measurement tables. Blue whales, 276, 278-85, 296, 

 297 



Fin whales, 323, 324-31, 340, 341 

 Measurements, mean values of, 276-95, 323-39 

 Megaptera nodosa, 271 

 Methods of work, 263-9 

 Migrations, 412, 413, 436, 437, 463 



evidence for, 412, 413 

 Milk, 267, 401,431,432 



composition of, see Appendix I, p. 472 



sampling of, 472 

 Myxinoid fishes, 378 



Nursing period, 433-7; see also Lactation 

 Nictiphanes africanus, 361 



Observations, routine of, 265-8 

 Oestrus, 390 

 Oil, whale, 263 



extraction from blubber, see Appendix II, p. 476 

 Oil, yield of, from Blue whales, 272 



from Fin whales, 321 

 Orciniis, 272, 379 

 Osteological specimens, 259 

 Ovaries, 382-96 



examination of, 267, 268 



growth of, 383-5 



weight of, 383-5 

 0\-ulation, 389, 390, 396 

 0\-um, growth of, 385, 386 



Pacific Grey whale, 414, 445 

 Pairing, frequency of, 426, 427 

 Pairing season, 420 et seq. 



