Index 



585 



Paratrioza, 317 



Pariser, K., 359 



Park, Orlando, 454 



Park, Thomas, 463 



Parmann, D. C, 45 



Parpart, A. K., 52 



Passalidae, 474 



Passalus, 474 



Patch, Esther M., 228 



Patellina, 94, 95 



Patton, W. S., 435 



Peach, 493 



Peanut butter, 286 



Pearl, R., 440 



Pecten, 539 



Pectinatella, 179, 181 



Pedicia, 375, 376 



Pediculoides, 343 



Pelagic copepods, 225 



Pelagic larvae, 559 



Pelargonium, 499 



Pelecypoda, 537 



Pelmatohydra, 140 



Pelocoris, 313 



Peltodytes, 450 



Penn, Amos B. K., 129, 131 



Penn's medium, 30 



Pentatomidae, 299 



Peptone, 55 



Peranema, 62 



Perillus, 300 



Periplaneta, 283 



Perisierola, 512 



Peritrichida, 132 



Perla, 274 



Pests, 319, 327, 444 



Peterfi, T., 359 



Peters' medium, 106 



Peterson, A., 41 



Pfeffer's solution, 397 



pH, 56, 79, 85, 232, 470, 523, 529, 54i 



Phagocata, 155 



Phallusia, 561 



Philaeus, 333 



Phillies, George, 410 



Phillips, W. J., 469 



Philobdella, 203 



Philodina, 143 



Philonthus, 454 



Pholcidae, 242, 244 



Phorbas, 515 



Phorid flies, 401 



Phoridae, 412 



Phormia, 415, 422 



Phoronopsis, 197 



Phototropism, 346, 410, 432, 434, 495 



Phyllophaga, 468 



Physa, 525 



Phytomonadida, 61 



Pickens, A. L., 279 

 Pieris, 368 

 Pigeons, 98 

 Pig serum, 66 

 Pile scrape net, 6 

 Pilidium larva, 164 

 Pillars, concrete, 533 

 Pillow cage, 46 

 Pine, 484 

 Ping, Chi, 396 

 Piophilidae, 437 

 Piscicola, 202 

 Pitcher, R. S., 401 

 Pith-bearing plants, 516 

 Pityogenes, 484 

 Placobdella, 201 

 Plagiotomidae, 128 

 Planaria, 142, 153 

 Planariidae, 151 

 Plankton, 42, 539 

 Plankton net, 11, 42 

 Plankton trawl, 12 

 Planorbula, 523 

 Plant bugs, 299 

 Planulae, 145, 147 

 Plasmodium, 96 

 Plaster of paris block, 457 

 Plathelminthes, 142, 148 

 Platymonas, 135, 225 

 Platyura, 398 

 Plea, 312 



Plecoptera, 273, 274 

 Pleurotricha, 106, 107, 131 

 Pleuroxus, 220 

 Plough, H. H., 441 

 Plumatella, 179, 180 

 Plunger jar, 21, 222 

 Plunger-pipette, 43 

 Pocket lens, 13 

 Podosphaera, 461 

 Pollen, 410, 475, 4$5 



Pollenia, 427 



Pollen-using wasps, 517 



Polyandrocarpa, 560, 567 



Polycarpa, 565 



Polycelis, 156 



Polychaeta sedentaria, 182, 185 



Polygonum, 301 



Polygyra, 527 



Polymastigida, 65 



Polyphemus, 357 



Polyporus, 460, 467 



"Polyporus agar," 372 



Polyspermy, 188, 544 



Polytoma, 61 



Polytomidae, 61 



Pond cultures, 69 



Popillia, 172 



Poplar, 521 



