I NDEX 



937 



PAMERIFORMEti, pas'erifor'mez (L. 

 passer, sparrow -f- formes, form)... 425 



Sparrow-like birds. More than one- 

 half of all birds belong to this group. 

 There are 64 families. 



PASSIVE POLE, definition of.. 105 



PASTEUR, LOUIS 30, 382, 388 



PASTEUR'S SOLUTION 189 



A bacteriologic culture-fluid con- 

 sisting of 100 parts water, 10 parts 

 sugar, and 1 part each ashes of yeast 

 and ammonium carbonate. 

 PATELLA, patell'ah (L. a small pan 



or dish) 710 



PAT ELLIN A (L. patellae, a small 



dish) 156 



A species of Vorticella. 

 PATENS (L. pateo, to lie exposed) .. .155 



A species of Condulostoma. 

 PATHOGENIC, path'oge'nic (G. pathos, 



suffering + genos, offspring) 141 



Fungi 209 



Protozoa 142 



PATHOLOGY, puthol'oji (G. pathos, 



suffering -f- genos, offspring) 141 



PATTERSON! 460 



PATTON 638 



PAUNCH, punch (L. pantex, belly) . .745 

 PAUROPODA, parop'oda (G. pauros, 



small + pous, foot) 422 



An order of Progoneala. 



PEA FRUIT DEVELOPMENT 21,5 



PEAT- MOSSES, definition of 215 



PEBRINE, peb'rin (F. pebrine, dis- 

 ease of silkworm) 153, 333 



PECTEN, pak'ten (L. comb) 874 



PECTINEAL, pek'tine^'al (L. pecten, 



comb ) 101 



Process 705 



PECTINEUS, pektine'us (L. pecten, 



comb) 83, 829 



PECTIN I BRANCH I A , pek'timbran^'- 

 kia (G. pecten, comb + brdnchia, 



gills) 421 



An order of Gastropoda. 

 PECTORAL, pek'toeral (L. pectoralis, 



referring to the chest) 73, 531 



Girdles 6!)9, 100 



PECTORALIS, pektoeral'is (same as 



pectoral ) 79, 829 



PEDICEL, ped'isel (L. pediculus, a 



small foot) 218 



PEDICELLINA, pedisele'na (N. L. 



pedicellus, pedicel ) 310 



PEDICLE, OPTIC, ped'ikle (L. pedic- 

 ulus) 875 



PEDICULATI, pedi'ciila'ti (L. pedicu- 

 lus, a little foot) 645 



PEDIGU L OIDE8 VPJNTRICOSU8, 

 pedikilloid'ez (L. pediculus, louse). 350 



PEDI PALPI, pedipfil'pi (L. pes, foot 



+ palpus, palp ) 422 



An order of Lipoctena. 

 PEDUNCLE, pedung'kle (L. peduncu- 



lus, a small foot) 310 



Anterior 85!) 



Cerebellar 512 



Cerebral 512, 839, 845 



PEL ARGON ILAI, pelargo'nium (G. 

 pelargos, stork, from the resem- 

 blance to a stork's bill ) 23 '/ 



A species of Geranium. 

 PELECYPODA, peleslp'oda ( G. 



pelekus, ax + pous) 421, 429 



PELLICLE, peTikle (L. pellicula, a 



small skin ) 1 38 



PELLUCID, pelusid (L. pellucida, 



transparent) 439 



PELVIS, pel'vls (L. pelvis, basin, the 



pelvis) 73, 701 



PELVIC GIRDLE 705 



PENETRATION PATH, definition of. 551 

 PENIS, pee'nis (L. male copula tory 



organ) .820 



PENNATULA SULCATA, penfit'fila 



(L. pennatus, winged) 256 



PENNATULACEA, penatula'sea (L. 



penndtus, winged ) 420 



An order of Alcyontiriu. 

 PENTADACTYL, pen'tfidfik'tll (G. 



pente, five + daktylos, finger) 646 



PENTASTOMOIDEA , pen'tastomoi'defi 

 (G. pente, five -f- sloma, mouth) . . . .422 

 An order of Linguatulida. - 



PENTRICHA 154 



PEPPERMINT 235 



PEPSIN, pep'sin (G. pepsis, a digest- 

 ing) . 50 



PEPTONES, pep'tons ..50, 268 



PERCEPTION (L. per, through + 

 capio, to grasp) , definition of 177 



PERCESOCE8, perses'osez (G. perke, 

 perch + esox, a kind of pike) 64:5 



PERENNIALS, peren'nials (L. per, 

 through -4- annus, year) 232 



PERENNIBRA NCHII, percn'nibra ng'- 

 kei (L. per + annus + G. brangchia, 

 gills) ..649 



PER ENNIBRA NCH8, peren 'n ibranks 

 (L. per + annus + G. brangchia) .760 



PERFECT FLOWERS, definition of . .228 



PERIANTH, per'ianth (G. peri, around 

 + anthos, flower) 203, 2 ',2 



PERIBLAST, per'iblast (G. peri, 

 around -f- btastos, a bud), definition 

 of .445 



PERIBLEM, per'Iblem (G. peri, around 

 + blcma, a coverlet) 228 



