458 



INDEX. 



Opisthopatus cinctipes. Salivary Glands of, 

 272 



Opossum's Stomach and Intestine, De- 

 veLipiuent of, 159 



Oppeiihiiiner, Frank, Suggestions Regard- 

 ing the Mechanical Design of Micro- 

 scopes, 134 



Optical Instruments, Report of the Inquiry 

 Committee on the Standardization of 

 the Elements of, 99 



Orban, Grete, Sexuality of Phycomyces 

 nitunx, 78 



Ores and Metals, Examination of, in Polar- 

 ized Light, 97 



Polarized Light in the Study of, 



97 



Orthiibiont, Phylogeny of the, 33 



Oshima, Masamitsu, Formosan Termites, 

 43 



Osmic Acid, Reduction by Lipoids, 15 



Osmundites, Missing Link in, 292 



Obtracuda, Foraminifera, and some Organ- 

 isms related to Oalcisphserae from the 

 Devonian of Germany, 329 



Ostrich, New Tapeworms from, 393 



Otidea leporina. Audibility of the Spore 

 Discharge in, 425 



Overeen, C. van, Mycological Contribu- 

 tions, 83 



Overhults, L. O., Some New Hampshire 

 Fungi, 211 



Ovum, Human, Pseudo-parthenogenesis 

 in, 157 



Oxidation, Changes in Intensity of, 387 



Oxyrhxncha, Double-walled Sensory Setae 

 in, 275 



Oysters, Green, 72 



Padina, Alternation and Parthenogenesis 



in, 77 

 Paludme Flora of Yverdon, 408 

 Pancreas during Pregnancy, Degenera- 

 tion of, 160, 175 

 Pancreatic Cells, Paranucleus of, 169 

 Pannrpa, Rectal Papillae of, 180 

 Pantopoda, Structure of, 43 

 Panus xtypticus, 81 

 Paragordius vaiius, 50 

 Parasites, Intestinal, 50 

 ParasitDlogy, 387 

 Panisomes in Pancreas of Tadpole of Rana 



teiuporaria. 258 

 ParcoropKium excavatum in Brisbane 



Rivtr, 276 

 Paris. P., Faune de France : II. Osieaux, 



214 

 Parisnt, J., and P. Simonin, Extract of 



Tapeworm, 185 

 Parker, G. H., Circulation of Water in 



Renilla, 186 



Parker, G. H., Movements and Lumine- 

 scence in Renilla, 281 



— - Stichopus panimensis, 393 



— Luminescence of Renilla, 394 

 Parsons, Anthony Frederick, Death of, 156 

 Partington, J. R., and D. B. Huntingford, 



The Reduction of Osmic Acid by 

 Lipoids, 15 

 Pascher, A., Green Marine Plankton Alga, 

 Meringosphsera, 71 



— Composition of Marine Phytoplankton, 



71 



— Asterocystis de Wildeman and Astero- 



cystis Gobi, 199 

 Patch, Edith M., Aphids of the Rose and 



other Plants, 42 

 Patella, 121 

 Patouillard, N., New Lepiota from Brazil, 



421 



— Fungi from Tonkin, 422 



Patten, Mary W., Amicronucleate Race of 



Didinium nasutum, 396 

 Paul, D., Marasmius cauticinalis, 81 

 Paulson, R., Lichens found near Pains- 

 wick, 87 



— Microscopical Structure of Lichens, 213 



— Sporulatiou of Gonidia in the Thallus 



of Everina prunadri, 427 



— Ten Years' Progress in Lichenology in 



the British Isles, 4i.8 



— and SomerTille Hastings, Relation 



between the Alga and Fungus of a 



Lichen, 87 

 Peacock, A. D., Larva of Ophryotrocha 



puerilis, 277 

 Pearse, A. S., and Henrietta Achtenberg, 



Study of Yellow Perch, 260 

 Pearson, A. A., New British Hymeno- 



mycetes, 422 

 Pectinatella, Larval Colonies of, 57 

 Peindarie, Jean, Smooth Muscle Fibres of 



Central Suprarenal Vein, 168 

 Penard, E., Strombidium viride, 61 

 Pennington, L. H., and others. Investiga- 

 tions of Crunartium ribicola in 1920, 



420 

 Pepper Fruits, Soft Rot of, 205 

 Perch, Yellow, 41 

 P6rez, C, Animals Associated with 



Spondylus, 176 



— Association of Tubularian and Sponge, 



186 



— Fat-cells of Insects during Metamor- 



phosis, 2t)4 

 Peridinieae, New Species of, 199 



— Polish Fresh-water, 407 

 Peridinium Giistrotoiense sp. n., 70 

 Peroiiospora Species, 205 

 Pestalozzia, 417 



Petch, T., Fungi Parasitic on Scale 

 Insects, 422 



Petersen, C. G. J., Green Oysters in Den- 

 mark in 1911-12, 72 



