Index 



473 



Euglena 128 



Behavior of 130 



Encystment 130 



External features 128 



Internal features 128 



Locomotion 129 



Nutrition 129 



Reproduction 130 



Flagellates of Uncertain Position . . . 145 



Paramoeoium 139 



Pathogenic Protozoa 143 



Plasmodium Malariae 131 



Life cycle 132 



How discovered 135 



Summary of Protozoa 148, 157 



PROTUBA, protu'ra (G. protos, first 



+ ura, a tail ) 425 



An order of Mirientomata. 

 PROVENTRICULUS, proh'ventrick'- 

 yulus) (L. pro, before; venter, 



belly), definition of 277 



PROXIMAL, prok'simal (L. proximus, 



nearest) 76 



PSEUDOPODIA, su'dopo'dia (G. 

 pseudes, false; pous, foot), definition 



of 172, 216, 220 



PSEUDO-REDUCTION, definition of.. 102 

 PSYCHOLOGY, sikol'oji (G. psychos, 



the soul + logos, discourse ) 32, 40 



Animal 173, 185 



Functional 176 



Structural 176 



PSYCHOZOIO, sikozo'ik (G. psyohus 



+ zoon, animal) 395 



PTERIDOP EYTES, terid'ofits ( G. 



pteris, fern; phyton, plant 204, 224 



PTERIS, teris (G. pteris, fern) 220 



PTEROBRANOHIATA, tero'brankia'ta 

 (G. pteron, wing + orangchia, gills) 



427 



PTERYGOGENEA, ter'igoje'nea (G. 



pteryx, wing; genos, kind) 425, 433 



PTERYGOID, ter'igoid (G. pteryx, 



wing, eidos, resemblance ) 72 



PUBIS, pu'bis (L. pules, mature) 77 



PULEX IRRITANS, pew'leks ir'ri- 



tahns (L. pulex, a flea) 351 



Serraticeps 351 



PULMONARY CIRCULATION, pull'- 



mownay'ree (L. pulmo, lung) 54 



PULMONATA, pulmona'ta (L. pulmo, 



lung) 423 



PULSATING 93 



PULVILLUS, pulvil'lus (L. pulmllus, 



a small cushion) 338 



PUPA, pewpa (L. pupa, a puppet) .... 



332, 346, 364 



PUPARIA, pewpa'rea (L. pupa) .... .371 

 PUPIL, pewpil (L. pupilla, the pupil 



of the eye), definition of 70 



PURPOSE OF FLOWER 244 



PURPOSITIVENESS 406 



PU HILDA, pusil'la (L. pusillus, very 



little, pretty) 150 



PYCN O GOMORPHA, piknogomor'fa 

 (G. pyknos, thick + gony, the knee 



+ morphe, form ) 424 



An order of Pantopoda. 

 PYLORIS, pllor'is (G. pyloros, a gate- 

 keeper) 49, 319 



PYORRHEA, pi'dre'a (G. pyon, pus + 



rhoia, a flow ) 142 



PYRAMIDAL, pyram'idal (L. pyramis, 



a pyramid ) 321 



PYRENOIDS, pi'renoids (G. piren, a 



fruit stone), definition of 129, 205 



PYRIFORMIS, piriformis (L. pyrum, 



pear; forma, shape) 83 



QUADRANGULAR, quadrang'ular (L. 



quadratus, squared) 73 



QUADRATUS, quadra'tus (L. quad- 

 ratus ) 84 



QUARTAN FEVER, kwor'tan (L. 

 quartanus pertaining to the fourth) .133 



QUILLWORTS, kwil' worts 225 



A plant of the genus Isoetes with 

 quill-like leaves. One of the Fern 

 Allies. 

 QUININA, kwine'na (L. quinina, qui- 

 nine) 206 



A species of Spirogyra. 

 RADIAL CANALS, ray'deeal (L. 



radius, ray ) 254 



Fibrovascular bundles 237 



Symmetry 248 



RADIALE, ra'dia'le (L. radius, ray) . 76 



RADIATA 256 



RADIATION 38 



RADIOLARIA 149, 420 



RADIOULNA, radioul'na (L. radius, 



ray + ulna, elbow) 76 



RADIUS, ra'dius (L. radius, ray) 336 



RAINEY'S TUBULES, definition of.. 144 

 RAMUS COMMUNICANS, ray'mus (L. 



a branch ) 65 



RANA ESCULENTA, ra'na (L. rana, 



frog) 51 



Pipiens 43 



RANVIER, NODES OF 114 



RAPHIDOIDEA 426 



RATHKE 381 



RAY, JOHN 416 



REASONING, definition of 183 



REAUMUR 381 



RECAPITULATION THEORY (same 



as Haeckel's Law of Biogenesis) 



RECEPTACLE, resep'takl (L. recipere, 



to receive) 20$ 



RECEPTACULUM, reseptak'ulum (L. 



recipere, to receive ) 345 



RECEPTOR, resep'tor (L. recipere, to 



receive) 178 



In immunity 198 



RECESSIVE, reses'iv (L. recess us, 

 withdrawn) 164 



