CONTENTS 



Original Papers 



Page 



Physics. — Luminescence measurements. N. E. Dorset 1 



Mineralogy. — Mineralogic notes. Esper S. Larsen and George Steiger. . 6 



Abstracts 



Geophysics 13 



Physics 13 



Magnetism 14 



Geology 14 



Engineering 15 



Technology 16 



Proceedings 



The Philosophical Society 17 



The Biological Society 24 



