So8 



INDEX. 



Petal, 476 



Petiole, 462, 474 



Phalanges, manus, 70; pes, 73 



Pharynx, Earthworm, 241, 253, 

 255 i Frog, 5 * " 



Phloem, Bean, 463, 472; Fern, 

 446, 448, 449, 453 



Phloem-sheath, 447, 453 



Phosphorus, 379, 403 



Photometric Zoospores, 395 



Pia mater, 27, 96 



Pineal gland, 26 



Pinnule, 443, 447 



Pistil, 460, 478 



Pith, 462, 472 



Pits, 446, 472 



Pitted vessels, 464, 473 



Pituitary body, 26, 99 



Plasmolysis, 397 



Pleomorphic Bacteria, 411 



Pleurobranchiae, 221 



Pleurqcoccus,-389 



Pleuron, 192 



Pleuroperitoneal cavity, 7, 39, 41; 

 membrane, 8, 42, 43 



Plexus, brachial, 31 ; epidermal, 

 245; excretory, 261; lumbo- 

 sacral, 31, 103 

 Plumule, 461, 480 

 Pod, 461 



Podobranchise, 220 

 Polar bodies, 278, 302 

 Polar plate, 139 

 Pollen, 460, 465, 477 

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



480 

 Pollinodium, 420 

 Pore-canals, Crayfish, 203 ; Mus- 

 sel, 341 

 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 

 Procephalic process, 202 



Processus spiralis, J40 



Pro-embryo, 435 



Pro-otic, 60 



Propodite, 196 



Pro-renal duct (see Segmental 

 duct) 



Prosencephalon, 97 



Prostate, 290 



Prostomium, 240, 249 



Protein, 379, 390, 467 



Proteus animalcule, 369—376 



Prothallus, 450, 457, 466 



Protococcus, 389 — 395 



Protophloem, 447, 454 



Protoplasm, 379 



Protoplasmic .movement, Anacha- 

 ris, 442; Chara, 440; Nettle- 

 hair, 442; Tradescantia, 441; 

 Vallisneria, 442 



Protopodite, 177, 193, 239 



Protoxylem, 446, 454, 472 

 Pseudopodia, 122, 370, 374 

 Pleris, 443— 459 

 Pterygoid, 61 

 Pubis, 71 



Pulmonary sac, 274, 282 

 Putrefaction, 410 

 Pylangium, 18 

 Pylorus, 15, 46 

 Pyrenoid, 398, 404 



Quadrate, 65 

 Quadrato-jugal, 61 



R. 



Rachis, 288 



Radicle, 461, 480 



Radius, 70 



Radula, 287 ; sac of, 285 



Sana esculenta — temporaria, 1 — 



172 

 Receptaculum ovorum, 269 

 Receptaculum seminis, 292 

 Rectum, Mussel, 337 ; Snail, 283 



