252 
Neue Literatur. 
Neue Literatur. 
Mineralogie. 
Beckenkanip , J. : Über Chalkopyrit vou Arakawa, Ugo, Japan. 
Physik. -med. Gesellsch. Würzburg 1906. 2 p. 
Eve. A. S.: Measureiuent of Eadium in minerals by the ;’-Radiation. 
Amer. Journ. 1906. 4 — 8. 
Flink. G.: Apofyllit trän nägra svenska fyndorter. 
Geol. Foren. 1906. 423 — 450. 
Graham, E. P. P. : Note on two interesting pseudomorphs in the 
Mc Gill University Mineral Collection. 
Anier. Jouni. 1906. 47 — 55. 
Hintze, C. : Handbuch der Mineralogie. 
1. 10. Lief. Quarz — Eutil. Leipzig 1906. 1441 — 1600. 
Howard, K. S. und Davison. J. M.: Estacado Aerolite. 
Ainer. Journ. 1906. 55 — 61. 
Krairs, E. H. und Cook. C. W. : Datolite from Westfield, Massachu- 
setts. 
Amer. Jomn. 1906. 21 — 29. 
Pentield. S. L. und Ford. W. E.: Stibiotantalite. 
Amer. Journ. 1906. 61 — 77. 
Eutherford, E. und Boltwood, B. B. : Relative proportion of 
Eadium and Lranium in radio-active minerals. 
Amer. Journ. 1906. 1 — 4. 
Santolalla. F. Malaga: La Pro\'incia de Contnmaza y sus asientos 
minerales. 
Cuerpo de Ingenieros de ^Minas del Perii. Lima 1906. 
.Sjögren. Hj.: Om Igelstr»")m’s Kondroarseuit frän Pajsberg. 
Geol. Foren. Stockh. 1906. 401. 
Villarello, J. D.: Application de la Iluoresceine ä questions de 
sahibrite publique. 
Soc. Cient. ..Antonio .\lzate“. t. 24. No. 2. 51 — 62. Mexiko 
1906. 
Villarello, J. 1).: Cn nouveau tiuoroscope. 
Soc. Cient. ..\ntonio .\lzate“. t. 24. No. 2. 63 — 72. Mexiko 
1906. 
Wright. F. E. : Modification of the Lasaclx Method for obserting 
interference tigures under the microscope. 
.\mer. Journ. 1906. 19 — 21. 
