Thesis presented to the Faculté des Sciences de Paris.
_Reprinted from the CHEMICAL NEWS._
(SECOND EDITION).
LONDON: _CHEMICAL NEWS_ OFFICE, 16, NEWCASTLE STREET, FARRINGDON STREET, E.C. 1904.
From Radio-Active Substances by Marie Curie.
Thesis presented to the Faculté des Sciences de Paris.
_Reprinted from the CHEMICAL NEWS._
(SECOND EDITION).
LONDON: _CHEMICAL NEWS_ OFFICE, 16, NEWCASTLE STREET, FARRINGDON STREET, E.C. 1904.