DOS 



hWT 



LONDON, EDINBURGH, and DUBLIN 



HILOSOPHICAL MAGAZINE 



AND 



I JOURNAL OF SCIENCE. 



CONDUCTED BY 



LORD KELVIN, LL.D. P.R.S. Ac. 

 GEORGE FRANCIS FITZGERALD, M.A. Sc.D. F.R.S. 



AND 



WILLIAM FRANCIS, Ph.D. F.L.S. F.R.A.S. F.C.S. 



" Nee aranearum sane textus ideo melior quia ex se fila gignunt, nee noster 

 vilior quia ex alienis libamus ut apes." Just. Lips. Polil. lib. i. cap. 1. Not. 



a s 



VOL. XL.— FIFTH SERIES. 

 JULY— DECEMBER 1895. 



LOJXJJON: 

 TAYLOE AND FEANCIS, EED LION COUET, FLEET STREET. 



SOLD BY SIMPKIN, MARSHALL, HAMILTON, KENT, AND CO., LD.; WIHTTAKER AND CO. 

 AND BY ADAM AND CHARLES BLACK ; — T. AND T. CLARK, EDINBURGH ; 



SMITH AND SON, GLASGOW; — HODGES, FIGGIS, AND CO., DUBLIN; 



PUTNAM, NEW YORK;-- VEUVE J. BOYYEAU, PARIS; — 

 AND ASIJER AND CO., BERLIN. 



