[I9I5-I9-] 



492 



Potash, recovery of, in cement works. 



—Wilson, A. W. G. 

 , in soils. — Andre, G. ; Hilgard, 



E. W., 1. 



, sources of. — Cameron, F. K. ; 



Holmes, A., 16 ; Macdowell, C. H. ; 



Thorpe, T. E. 

 Potash brines, evaporation of. — 



Hicks, W. B., 2. 

 felspar deposits, Gt. Britain. — 



Strahan, Sir A., 14. 



salt industry. — Martin, G. 



salts, Catalonia. — Rubio, C. 



, Chile. — Brueggen, J., 3. 



, Erythrea. — Giua, M. 



, India. — Stuart, M., 2. 



, New Jersey. — See New 



Jersey, 1. 

 , Saskatchewan. — Dowling, 



D. B., 15. 



, Sicily. — Gregorio, A. de, 5. 



, Spain. — Heriot, E. M. 



, Texas.— Phillips, W. B., 



2; Udden, J. A., 4. 

 , Western Australia. — Simp- 

 son, E. S., 5. 

 , occurrence of. — Gregorv, 



J.W.,27. y 

 Potassium, estimation of, in soils. — 



Aston, B. C. 

 — , in igneous rocks. — Washington, 



H. S., 4. 



" Potato stones," Norway. — Reusch, 



H., 4. i 

 Potentilla. — Welsch, J., 1. 

 Poterioceras. — Parks, W. A., 2; 



Stauffer, C. R., 5; Williams, M. 



Y., 11. 



Poteriocrinus. — Wright, J., fil., 2. 

 Potgietersrust (Transvaal). — Young, 

 R. B., 2. 



Pot-holes, Aberdeenshire.— Brernner, 

 A., 3. 



, Egypt. — Dacque, E. 



, Finland. — Kurki, M. V. 



, New Hampshire.— Goldthwait, 



J. W., 4. 



, formation of. — Svenonius, F., 



6. 



Potomac Formation. — Sinnott, E. 

 W., 3. 



Potoniea. — Bertrand, P., 1. 

 Potsdam (Prussia). — Meissner, O., 

 2. 



Potter's Bar (Middlesex). — Barrow, 

 G., 2. 



Pottery, prehistoric, magnetic pro- 

 perties of . — Mercanton, P. L., 4. 



Potton Township (Quebec). — Harvie, 

 R., 1. 



Pottsville Formation, Arkansas & 

 Oklahoma. — Mather, K. F., 1. 



Poimd Quadrangle (Virginia). — Butts, 

 C, 1. 



Poupet, Mt. (Jura). — Bourgeat, 



lAbbe, 4. 

 Pouzol-Servant (Auvergne). — Garde, 



G., 2. 



Powder Mill Creek (Tennessee). — 



Prior, G. T., 3. 

 Powell Mt. (Virginia). — Campbell, 



M. R., 1. 



Powlett Plains (Victoria). — Kitson, 

 A. E., 2. 



Pozzuolana, Philippine Is. — King, A. 

 E. W. 



Prasinite. — Lincio, G., 3. 



Prasopora. — Cumings, E. R., 2; 



Howell, J. V. ; Vinassa de Regny, 



P., 1 & 3. 

 Prattia. — Faura, M. 

 Pravitoceras. — Yabe, H., 2. 

 Pre-Alps, Lombardy. — -Mariani, E., 



, Switzerland. — Lugeon, M., 2 & 



6; Sarasin, C, 1 & 7. 

 Pre-ApennineS, Italy. — Verri, A., 2. 

 Preavicula. — AVilliams, H. S., 2. 

 Pre-Cambrian, Adirondacks. — Ailing, 



H. L., 2. 



, Canada. — Kindle, E. M., 15; 



Tyrrell, J. B., 5; Wilson, M. E., 

 7. 



-. , Finland.— Wilkman, W. W., 2. 



, Montana. — Walcott, C. D., 4. 



, Mozambique. — Holmes, A., 14. 



, New York. — Martin, J. C. ; 



Miller, W. J., 3. 

 , Newfoundland. — Buddington. 



A. F., 2. 



, N. America. — Lawson, A. C. 



2; Steidtmann, E., 1. 

 — — , Ontario. — Coleman, A. P., 1 ; 



Miller, W. G., 3 & 4. 

 ■ , Pennsylvania. — Jonas, A. I. ; 



Wherry, E. T., 12. 

 ■ , Portugal. — Souza-Brandao, V.. 



2. 



, Quebec (N.).— Cooke, H. C, 7. 



, Scandinavia. — Backhand, H., 



6; Gavelin, A., 4 & 5; Holmquist, 



P. J., 6; Quensel, P., 5 & 6. 



, S. Dakota.— Paige, S., 1 & 2. 



, Wyoming.— Blackwelder, E., 9. 



algal deposits. — Twenhofel, W. 



H., 8; Walcott, C. D., 2. 



climates. — Coleman, A. P., 5. 



correlation. — Lane, A. C, 5. 



nomenclature. — Lane, A. C, 



2; Schuchert, C, 6. 

 organic remains. — Walcott, C. 



D., 11. 



palaeogeography. — Ruedemann, 



R„ 3. 



. See also Algonkian, &c. 



Precipitation, of ore-forming com- 

 pounds.— Wells, R, G, 1. 



Pre-glacial platform, Spitsbergen. — 

 Peach, A. M. 



valleys, Minnesota. — Soper, E. 



K., 1. 



Prehistoric archaeology, Belgium. — 



Fraipont, C, 4. 

 civilisation, Iberian Peninsula.— 



Aguilo, J. C, 1 & 2. 

 climates. — Pettersson, O. 



