BIOLOGICAL PHYSICS 

 PHYSIC ftr METAPHYSICS 



STUDIES AND ESSAYS BY 



THOMAS LOGAN, M.D. 



LICENTIATE OF THE ROYAL FACULTY OF PHYSICIANS AND SURGKONS 

 OF GLASGOW 



EDITED BY 



QUINTIN M C LENNAN, M.B., Cn.M. 



SURGEON, GLASGOW ROYAL INFIRMARY; FORMERLY EXTRA-HONORARY SURGEON 



ROYAL HOSPITAL FOR SICK CHILDREN, GLASGOW ; MEDICAL EXAMINER 



FRENCH, SPANISH, RUSSIAN AND ITALIAN CONSULATES ', EXTRA 



MEDICAL EXAMINER FOR BOARD OF TRADE, ETC. 



AND 



P. HENDERSON AITKEN, M.A., B.Sc., D.Lrrr. 



VOL. I. 

 BIOLOGICAL PHYSICS 



Circulatio Circulationum omnia Cirailatio 





LONDON 



H. K. LEWIS, 136, GOWER STREET 

 1910 



