INDEX. 



A 



t 



A 

 A 



Abdominal cavity, 340, 379 



regions, defects of, 622 

 Abducens, VI, nerve, 469, 471 

 Aberrant ductule, 421 

 Abnormal embryos, i 58 

 Abrachius, 623 

 Acardia, 285, 607 

 Acardiaci, acephali, 608 



acormi, 608 



amorphi, 608 



completi, 608 

 Acardiacus, 607 

 Accessory chromosomes, 28 

 Achromatic spindle, 4 

 Acid fuchsin, 636 

 Acini, the, 450 



Acoustic area, (see also Auditory area), 565 

 lion, 598 



, nerve, 469, 472, 506, 507, 510, 

 525. 598 



nerve, ganglion cells of, 599 



radiation, 477, 478 

 Acrania, 616, 617, 619 



with exencephaly, 617 

 Acrocephaly, 216 

 Acromion process, 203 

 Acrosome, 14 



Acustico-facialis ganglion, 598 

 Acustico-lateral system, 



influence on nervous system, 459, 



466, 473 



dami, concerning hermaphroditism, 439 

 Adenoid tissue, 332 

 Adipose tissue, 171 

 Aditus laryngis, 362, 363 

 After-brain (myelencephalon), 462 

 After-birth, 134 

 Afferent root fibres, 458 

 Afferent peripheral neurones, 454, 464, 

 496 to 509. 



peripheral nerve fibres, 458 

 Agnathus, 357, 621 

 Ahlfeld's fission theory of symmetrical 



duplicitv, 611 

 Air sacs, 367 

 Ala cinerea, 531 



magna, 195 



parva, 195 

 Alar plate, 484, 497, 519, 522, 526, 530, 



53i, 532 

 Albinism, 452 

 Albrecht, concerning formation of incisive 



bone, 200 



Alcohol, for fixation, 631 

 Alecithal ova, '42, 43 



(mammalian), method for study of, i 5 



41 639 



Alimentary tube, 317 



intestinal region of, 318 



cesophageal region of, 318 



origin of, 317, 318 



pharyngeal region of, 318 



stomach region of, 318 



yolk stalk of, 318 

 Alimentary tube and appended~organs, 



anomalies of, 355 



histogenesis of gastrointestinal tract, 



343 



of liver, 3 50 

 of pancreas, 3 54 



intestine, 338 



liver, 346 



mouth, 318 



oesophagus, 336 



pancreas, 351 



pharynx, 330 



practical suggestions for study of, 359 



salivary glands, 328 



stomach, 336 



teeth, 323 



tongue, 321 

 Alisphenoid bone, 195 

 Allanto-chorion, 106 

 Allantoic blood-vessels, in Mammals, 108 



duct, 118, 338 



sac, 1 08 

 Allantois, the, 106 



blood-vessels of, in chick, 107 

 in Mammals, 113 

 in man, 119 



functions of, in chick, 106 

 in man, 118 



in Mammals, 1 1 1 



in man, 118 



relation of, to chorion, 106 

 Allen, concerning sex cells, 407 

 Alopecia, 452 

 Alternation of vertebrae and myotomes, 



184, 295 



Alum-carmine, 635 

 Amelus, 623 

 Amitosis, 3 



diagram showing, 4 



Amnion, formation from amniotic fold, 

 i o i 



in Birds, 99 



in Mammals, 108, no 



in man, 115 



in Reptiles, 99 



practical suggestions for study of, 135 



rhythmical contractions of, 102, 116 



false, 102 



