INDEX 



Abdominal cavity, 339, 377 



regions, defects of, 610 

 Abducens, VI, nerve, 462, 464 

 Aberrant ductule, 417 

 Abnormal embryos, 154 

 Abrachius, 611 

 Acardia, 285, 595 

 Acardiaci, acephali, 596 



acormi, 596 



amorphi, 596 



completi, 596 

 Acardiacus, 595 

 Accessory chromosomes, 28, 29 

 Achromatic spindle, 4 

 Acini, the, 443 

 Acoustic area (see also Auditory area), 558 



ganglion, 588 



VIII, nerve, 462, 465, 499, 500, 503, 

 518, 588 



nerve, ganglion cells of, 589 



radiation, 470, 471 

 Acrania, 604, 605, 607 



with exencephaly, 605 

 Acrocephaly, 212 

 Acromion process, 199 

 Acrosome, 14 



Acustico-facialis ganglion, 588 

 Acustico-lateral system, 



influence on nervous system, 446, 459, 466 

 Adami, concerning hermaphroditism, 435 

 Adenoid tissue, 331 

 Adipose tissue, 167 

 Aditus laryngis, 360, 361 



Afferent peripheral neurones, 447, 457, 489 to 

 502 



peripheral nerve fibers, 451 



root fibers, 451 

 After-birth, 133 



After-brain (myelencephalon), 455 

 Agnathus, 356, 609 



Ahlfeld's fission theory of symmetrical du- 

 plicity, 599 

 Air sacs, 365 

 Ala cinerea, 527 



magna, 191 



parva, 191 



Alar plate, 477, 490, 512, 515, 519, 523, 527, 



528 



Albinism, 445 

 Albrecht, concerning formation of incisive 



bone, 196 

 Alimentary tube, 316 



intestinal region of, 317 



cesophageal region of, 317 



origin of, 316, 317 



pharyngeal region of, 317 



stomach region of, 317 



yolk stalk of, 317 

 Alimentary tube and appended organs, 316 



anomalies of, 354 



histogenesis of gastrointestinal tract, 341 

 of liver, 349 

 of pancreas, 353 



intestine, 337 



liver, 345 



mouth, 317 



oesophagus, 335 



pancreas, 350 



pharynx, 329 



salivary glands, 327 



stomach, 335 



teeth, 322 



tongue, 320 

 Alisphenoid bone, 191 

 Allanto-chorion, 102 

 Allantoic blood-vessels, in Mammals, 104 



duct, 114, 337 



sac, 104 

 Allantois, the, 102 



blood-vessels of, in chick, 103 

 in Mammals, 109 

 in man, 115 



functions of, in chick, 102 

 in man, 114 



in Mammals, 107 



in man, 114 



relation of, to chorion, 102 

 Allen, concerning sex cells, 404 

 Alopecia, 445 

 Alternation of vertebrae and myotomes, 180, 



295 



Amelus, 611 

 617 



