916 



INDEX 



FLEXION, flek'shun (L. flexus, bent) . 



43, 78 



FLEXORS, definition of 829 



FLOCCULUS, flok'ulus (L. a little 



piece of wool ) 859 



A small accessory lobe on each 

 lateral lobe of the cerebellum. 

 FLORAL ENVELOPES, flo'ral (L. 



//os, flower ) 2.}2 



Organs 2j2 



FLOUNDER 645 



FLOWER CL..flos, flower), purpose of. 242 



FLOWERING PLANTS MM 



FLOWERS (L. flos, flower) 242 



The blossom of a plant, compris- 

 ing generally sepals, stamens, and 

 pistils. 



A leafy shoot adapted for repro- 

 ductive purposes. 



FLUKE, LIVER 289-293 



. Asiatic lung 291 



Bronchial 291 



FLY 307-371 



Foot of 333 



Head of 333 



Killers . 371 



Life history 3(59 



FLYING FiiSH 044 



FOETUS, or FETUS, fetus (L. foetus, 



offspring ) 624 



An embryo in the egg or in the 

 uterus. 

 FOLIACEOUS, folifi'shiis (L. folium, 



a leaf) 315 



Leafy. 



FOL1OSE LICHEN, fo'lios li'ken (L. 



folium, leaf; G. leichen, liver wort). 



FOLLICLE, fol'ikl (L. folliculus, a 



little bag) 442 



A capsular fruit which opens on 

 one side only. 



FOLLICLE, GRAAFIAN . .443 



FONTANELLE, fontaneT (F. a little 



fountain ) 72, 684 



A gap or space between bones of 

 the cranium, closed only by a mem- 

 brane. 



FOOT CELLS OF SERTOLI . . . . 520, 811 

 FORAMEN, FORAMINA, foramen, rfi'- 



mena 



Any opening. 



FORAMENIFERA, loraminifera (L. 

 foramen, a hole; ferre, to bear) .148, 418 

 An order of Rhizopoda. 



FORAMEN MAGNUM 72 



Of Panizza 786 



Ovale, definition of 534 



FORE BRAIN* 472 



Gut 455-484 



FOREIGN LANGUAGES, value of. ... 41 

 FORMATION OF GERM LAYERS IN 

 MAMMAL . . 622 



FORMATIVE POLE, definition of.... 105 

 FORN1CATUS GYRUS, fornikfitus 



jirus (L. fornicatus, arched) 844 



FORNIX, fOr'niks (L. an arch or 



vault) 845 



An arched sheet of longitudinal 

 fibers beneath the corpus callosum. 



FOSSA, fOs'fi (L. a pit or cavity) 72 



A ditch or trench-like impression. 



Hypophyseos 687 



Rhomboidalis 800 



FOSSIL, fos'il ( L. fossilis, dug up ) . . 



Remains 399 



Kndex 398 



FOSSORIAL 654 



FOVEA CENTRALIS, fo'veft (L. fovea, 



depression ) 873 



FRENULUM, fren'ulum (L. a bridle 



or bit) 



.A fold of membrane as of tongue 

 or clitoris. 



FRENUM, fre'num (L. bridle) 73/> 



A frenulum. 



FRICTION RIDGES ....678 



FROG 



Arteries 59 



Brow spot 45 



Circulatory system 53 



Columella 45 



Digestive system 47 



Ear 45, 71 



Egg 44 



Embryology 



Comparison of Tadpole and Chick. 543 



Blastulation 553 



Classification of chordata 543 



Embryo formation 564 



Fertilization 550 



Gastrulation 550 



Later development of tadpole . . . 569 



Lateral line organs 582 



Maturation 552 



Medullary plate . 5f ! 2 



Nervous system 570 



Somites . 568 



Digestive Tract 585 



Midgut derivatives 589 



Hindgut derivatives 590 



Mesodermal Somites 591 



Table of Somites 592 



Circulatory System 594 



Arterial system 590 



Heart 594 



Origin of 



Circulatory system 599 



Venous system 599 



Lymphatic system 602 



Septum transversum 604 



Urogenital System 605 



Adrenal bodies 610 



Epinephroi 610> 



Mesonephros 608; 



