5 o8 



Petal, 476 



Petiole, 461, 474 



Phalanges, mantis, 70; pes, 73 



Pharynx, Earthworm, 741, 253, 



*55 Fr g 5 



Phloem, Bean, 463, 471; Fern, 

 446, 448, 449, 453 



Phloem-sheath, 447, 453 



Phosphorus, 379, 403 



Photometric Zoospores, 395 



Pia mater, 77, 96 



Pineal gland, 16 



Pinnule, 443, 447 



Pistil, 460, 478 



Pith, 467, 471 



Fits, 446, 472 



Pitted vessels, 464, 473 



Pituitary body, 76, 99 



Hasmofyw, 397 



Pleotnorphic Bacteria, 411 



Pleurobranchue, 721 



PLEUEOCOCCUS, 389 



Pleuron, 192 



Plenroperitoneal cavity, 7, 39, 41; 

 membrane, 8, 47, 43 



Plexus, brachial, 31 ; epidermal, 

 245; excretory, 761 ; him bo- 

 sacral, 31, 103 



Plumule, 461, 480 



Pod, 461 



Podobranchiae, 720 



Polar plate, 130 



Pollen, 460, 465, 477 



Pollen-sac, 465, 477; tube, 461, 

 480 



Pollinodium, 420 



Pore-canals, Crayfish, 203 ; Mus- 

 sel. 4 1 



Posterior commissure, 101 



Potassium, 379 



Pre-hallux (see Calcar) 



Pre-maxilla, 9, 60 



Pre-nasal process, 13, 64 



Primine, 478 



Primordial cell, 391 



Primordial utricle, 397, 404, 417, 



433 , 



Procephahc process, 202 

 Processus spiralis, 140 



Pro-embryo, 435 



Pro-otic, 60 



Propodite, 196 



Pro-renal duct (see Segmental 

 duct) 



Prosencephalon, 97 



Prostate, 290 



Prostomiom, 249 



Protein, 379, 390, 467 



Proteus animalcule, 369 376 



Prothallus, 450, 457, 466 



PROTOCOCCUS, 389395 



Protophloem, 447, 454 



Protoplasm, 3/9 



Protoplasmic movement, Anacha- 

 ris, 442; Chara, 440; Nettle- 

 hair, 442; Tradescantia, 441; 

 Valhsneria, 442 



Protopodite, 177, 193, 239 



Protoxylem, 446.454. 47* 



Pseudopodia, 122, 370, 374 



JVeris, 443459 



Pterygoid, 61 



Pubis, 71 



Pulmonary sac, 274, 282 



Putrefaction, 410 



Pylangium, 18 



Pylorus, 15, 46 



Pyrenoid, 398, 404 



Q- 



I 



Quadrato-jugal, 61 



R. 



R AC HIS, 288 



Radial bundle, 465 



Radicle, 461, 480 



Radius TO 



Radula, 287 ; sac of, 285 



Rana csculcnta temporaria, i 



172 



Receptaculum ovorum, 269 

 Receptaculum seminis, 292 

 Rectum, Mussel, 337 ; Snail, 283 



