THE 
LONDON, EDINBURGH, ann DUBLIN 
PHILOSOPHICAL MAGAZINE’ 
AND 
JOURNAL OF SCIENCE. 
CONDUCTED BY 
Pea KMLVIN, G.0.V.0. D.Cds LED: FIR.S. &c. 
JOHN JOLY, M.A. D.Sc. F.R.S. F.GS. 
AND 
ae. WILLIAM FRANCIS, F.L.S. 
“Nec aranearum sane textus ideo melior quia ex se fila gignunt, nec noster 
vilior quia ex alienis libamus ut apes.” Just. Lres. Polit. lib. i. cap. 1. Not. 
VOL. VIII.—SIXTH SERIES. 
JULY—DECEMBER 1904. 
LONDON: 
TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 
SOLD BY SIMPKIN, MARSHALL, HAMILTON, KENT, AND cO., LD.—T. AND T. CLARK, 
EDINBURGI ;—SMITH AND SON, GLASGOW > HODGES, FIGGIS, AND 
CO., DUBLIN > PUTNAM, NEW YORE > YEUVE J. BOYVEAU, 
PARIS ;—AND ASHER AND CO., BERLIN. 
C2305 
