THE 
LONDON, EDINBURGH, anp DUBLIN 
PHILOSOPHICAL MAGAZINE 
AND 
JOURNAL OF SCIENCE. 



CONDUCTED BY 
Bs tage 
LORD KELVIN; GeO.¥,0¢ BD Ey BLD. F.RS. &e. 
; \ JOHN SOLY, M.A. DSer PRS. EGS. 
3 2 CAWDS 5 2 ie Ee 
WILLIAM FRANCIS, @ ie 
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D 
“Nec aranearum sane textus ideo melior quia ex se fila gignunt, nec noster 
vilior quia ex alienis libamus ut apes.” Just. Lips. Polit. lib. i. cap. 1. Not. 
¢ VOL. VIL.—SIXTH SERIES 
_JANUARY—JUNE 1904. 

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SOLD BY SIMPKIN, MARSHALL, HAMILTON, KENZ_.AND CO., LD.—T. AND T. CLARK, 
EDINBURGII ;—SMITH AND SON, GLASGOW ;— HODGES, FIGGIS, AXD 
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PARIS ;——AND ASHER AND CO., BERLIN. 
S1 GS hi d 
A. — 435. F 


