[1905.] 



180 



Pitchblende, helium in. — Moss, E. J. ; 



see also Uraiiinite. 

 Pitchstone, Sgurr of Eigg. — Barker, A. 

 Pitlochrj^ (Perth). — Barrow, G. 

 Flaceyitieeras.- — Etheridge, 'R.,Jil., 3. 

 Placer-gold, Montana. — Donglass, E, 



mining, Alaska. — Purington, C. W. 



Placoccenia, Flacoqyra & Flacopliyllia. 



— Koby, F. 

 Placostegus. — Eovereto, G., 2. 

 PlacotrocJnis. — Dennant, J. 

 Pla cuna. —Locavd, A. 

 Placunopsis. — Galdieri, A., 2. 

 Plo'siomys. — Raymond, P. E., 2. 

 Plagioclase. — Cesaro, G., 2; see also 



Felspars. 

 Plagioloplms. — Stehlin, H. G., 3. 

 Plains, Central (U.S.A.).— Darton, N. H. 

 • , enclosed & other. — Passarge, S., 2 ; 



Tight, W. G., 3. 

 P?rt?ioj)s.— Scott, VV. B. 

 Phmt-fertilization.— White, C. H, 

 Plants, Carboniferous.— Arbev, E. A. N., 



1-4, 6, & 7 ; Gasparis, A. de, 2 ; Grand' 



Eury, P. C, 1-3 ; Kidston, E., 2 & 3 ; 



Koehne, W.; Oliver, F. W. ; Smith, 



B. ; Scott, V>. H., 1, 2, & 4 ; Weiss, F. 

 E.; White, D.; Zalesski, M. D., 2; 

 Zeiller, E., 3 & 4. 



• , Cretaceous. — Fliche, P. ; Stanton, 



T. W. ; Zeiller, E. 



■ , Culm.— Arber, E. A. Is., 2. 



, Devonian. — Nathorst, A. G. ; 



Smith, G. 0. 



, fossil. See also Wood, Sfc. 



, geology &. — Sernander, E. 



, interglacial, Eimshorn. — Gagel, C, 



2 & 4. 



— — , Jurassic. — Benecke, E. W.; Fliche, 

 P., 3 ; Lignier, 0. ; Seward, A. C, 1 

 & 2 ; Tornquist, A. ; Yokoyama, M. ; 

 Zalesski, M. I). 



• , leaf-variations in. — Penhallow, D. 



P. 



, Old Eed Sandstone. — Eeid, J. ; see 



also Devonian. 



, peat. — Mueller, G. 



■ , Permo-Carboniferous.— Etheridge, 



ll.,fil.,2; Eogers, A. W., 4; Seward, 



A. C, 2 & 3. 



, Permo-Jurassic. — Arber,E.A.N., 7. 



, Quaternary. — Gagel, C, 2 & 4 ; 



Hartz,N.,3; Kerner, F. von, 2 ; Mjoe- 



berg, E. 



, reproduction of types (Palaeozoic & 



Mesozoic). — Potonie, H., 4. 



, Ehsetic— Zeiller, R., 2. 



, soils &.— Fliche, P., 2. 



—, Tertiary. — Bonnet, E., 1 & 2; 



Clark, W. B. ; Deane, H; Engel- 



hardt, H. ; Hartz, N., 2 ; Krasser, F. ; 



Lauby, A., 2; Lemoine, P., 4; Mamy, 



C. J.; Mogan, L. ; Palibin, I. \' 

 Penhallow, D. P., 2. 



■ , Triassic. — Gasparis, A. dc, 3 ; 



Leuthardt, F. ; Lomas, J. 



. See also Alga;, ^'c. 



Plateau-deposits. — Eutot, A., 4. 



Plateau, Diisseidorf limestone. — Koenen^ 

 K. 



Platinum, Brazil. — Hussak, E. 



, Perm. — Spring, E. 



, Queensland. — Ball, L. C. 



, Sumatra. — Hundeshagen, L. 



, United States.— Day, D. T. 



Plattkofi massif (Tyrol).— Skeats, E. W. 

 Platycus. — Thomas, 1. 

 Platymelopus. — Eaymond, P. E. 

 Pleasant 1. or Nauru (S. Pacific). — 



Power, F. D. 

 Flecia. — Meunier, F. 

 Flectambonites. — Eeed, F. E. C. 

 Pleistocene, See Quaternary, Si'c. 

 Flesiosaurus. — Benecke, E. W.; Blake, 



J. F., 2 ; Koken, E. 

 Plesiospatangus. — Fourtau, E. 

 Pletliospira.— 'Dowiildi, (Miss) J., 2, 

 Pleuronautihis. — Crick, G. C, 4; Stobbs, 



J. T. 



Pleuropliorus. — Boehm, J. 

 Pleurosmilia. — Angelis d'Ossat, G. de; 

 Koby, F. 



Pleurostylodon. — Ameghino, F., 7. 

 Pleiirotoma. — Clark, W. B. ; Hu.tton, 

 F. W., 3. 



Pleurotomaria. — Blake,J.F.,2 ; Clerc,M. 

 Plexotemnus. — Ameghino, F., 7. 

 PlicaUda. — Locard, A.; Loriol, P. de;, 



Eichardson, L., 3. 

 Pliocene, Campine. — Dubois, E., 2 & 4j 



see also Tertiary, Icenian, Sfc. 

 Pliolamjpas. — Airaghi, C. 

 Plioplatecarj>2is. — Dollo, L. 

 Plug, Fernando de Noronha volcanic. 



— Wilson-Barker, D. 



, Mt. Pele volcanic— Eussell, I. C. 



Plumbojarosite.— Hillebrand, W. F., 3. 

 Pnevimatic foramina, Dinosaurian. — 



Seeley, H, G. 

 Po Vallev (Italy). — Sacco, F., 3 ; Stefani, 



C. de, 3; Taramelli, T., 5. 

 Pochlarn (Lr. Austria). — Sigmund, A., 2. 

 Podolia (Eussia). — Laskarev, V. 

 Poitiers (France). — Fournier, A. 

 Polacantlius. — Nopcsa, F., 3. 

 Poland, Eussian. — Sobolev, D. 

 Polarization-apparatus. — Nakamura, S. 



, crystals &.— Osthofl", A. 



, microscope. — Weinschenk, E. 



, minerals. — Kaemmerer, P. : see 



also Minerals. 



, slags &. — Hlawatsch, C. 



Polcenigo (Venetia). — Taramelli, T., 2. 

 Polymorpliina.- — Jensen, H. 1. 

 Polyphylloseris. — Koby, F. 

 Polypteride. — Stromer, E., 3. 

 Polyptyclms. — Morgan, J. de, 2. 

 Polystomella. — Jensen, H. I. 

 Polytropina. — Donald, (Miss) J., 2. 

 Polzin (Pomerania).— Deecke, V/. 

 Pomatocerus. — Eovereto, G., 2. 

 Pomerania (Prussia). — Beyschlag, F. ; 



Deecke, W., 1, 2, & 5 ; Groenwall, K. A., 



3; Hucke, K. ; Kaunhowen, F., 2; 



Potonie, H. ; Schneider, 0. ; Schell- 



wein, E. 



