750 



SUBJECT INDEX 



Pests of oysters, 6, 22 



Petricola carditoides, 13 



Petricolidae, 12 



Petrification, exhumed teeth, 125 



pH 



ABO homogeiuite, 65 



ABO secretion, 68 



critical level, 652, 657 



herbage press juice, 166 



niuricid snails, 65 



osteoclasts, 646 

 pH conditions, phosphate phase, 256 

 pH determinations 



ABO secretion, 86 



snail boring organ, 64 

 pH effect 



chelating properties, 638 



dissolution of calcareous material, 

 34 



lactate production, 598 



solubility of minerals, 584 



yttrium deposition, 451 

 pH gradient, bone, 584 

 pH indicator, boring organ, 60 

 pH levels, saliva, 267 

 pH optimum, collagenase, 685 

 Phagocytic cells, implant, 516 

 Phagocytosis, osteoclasts, 489, 512, 



528 

 Phagosomes, 511 

 Phase contrast microscopy 



bone, 535 



osteoid, 481 

 Phase identification, enamel dissolu- 

 tion, 253 

 Philippine deer, antlers, 348, 351 

 PJwIadidea, 10 



penita, 11, 12 

 Pholas, 11 

 Phoronids, 55 



Phosphatase, giant cells, 527 

 Phosphate 



acidic forms, 257 



dihydrogen form, 585 



enamel, 139, 141 



intracellular, 604 



monohydrogen form, 585 



renal handling, 385 



transport mechanisms, 604 



tubular reabsorption, 427 

 Phosphate excretion, 428 

 Phosphate group, hydrox) apatite, 256 

 Phosphate phase, pH conditions, 256 

 Phosphate salts, enamel dissolution, 



253 

 Phosphatic manures, 165 

 Phosphaturic activity, parathyroid hor- 

 mone, 604 

 Phosphoamidase, giant cells, 527 

 Phosphorus, plasma, 533 

 Phosphorus balance, osteoporosis, 392 

 Phosphorus requirements, sheep, 161 

 Phosphorylated compounds, 166 

 Phosphorylated sugars, 639 

 Phosphorylation , 262 

 Phlegmasia, bone, 301 

 Phthioic acid, giant cell formation, 528 

 Physical chemistry of enamel dissolu- 

 tion, 213 

 Physiologic aging 



bone, 416, 423 



osteoporosis, 416 



urinary indices, 417 

 Physiologic bone atrophy, 386 

 Physiologic resorption, 321 

 Physiologic shedding, 96 

 Physiology of mammals, hibernation, 



285 ' 

 Physiology of periodontium, 310 

 Phytoliths, herbage, 169 

 Phytoplankton, 7 

 Pink tooth, 92, 96 

 Pinocytosis, 645 

 Pinosomes 



bone salt crystals, 501, 507 



enzyme transfer, 511 



osteoclasts, 501, 506 

 Pituitary cutofli^ mechanism, 433 

 Pituitary gland, antler-stimulating 



function, 362 

 Pituitary hormone, antler shedding, 



358 

 Placebo psychotherapy, osteoporosis, 



436 

 Placoid scales, elasmobranchs, 339 

 Plankton, 5 



