Vol. 16. DECEMBER 1883. No. 102. 
Published the First Day of every Month.— Price 2s- 6d. 
THE 
LONDON, EDINBURGH, and DUBLIN 
PHILOSOPHICAL MAGAZINE, 
AND 
JOURNAL OF SCIENCE. 
Being a Continuation of TillocKs 'Philosophical Magazine? 
Nicholson's 'Journal? and Thomson's 'Annals of Philosophy.'' 
CONDUCTED BY 
SIR ROBERT KANE, LL.D. F.R.S. M.R.I.A. F.C.S. 
SIR WILLIAM THOMSON, Knt. LL.D. F.R.S. &c. 
AND 
WILLIAM FRANCIS, Ph.D. F.L.S. .F.R.A.S. F.C.S. 
^T 
FIFTH SERIES. <g> "«- 
N° 102.— DECEMBER 1883. *> ^ 
WITH THBEE PLATES. 
Illustrative of Professors Liveing and Dewar's Paper on Sun-spots and 
Terrestrial Elements in the Sun ; Messrs. Galloway, and O'Earrell's 
on some Improved Laboratory Appliances ; and Messrs. Mills and 
Mackey's on Lines of no Chemical Change. 
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