ART. 
VIII. 
Tyndall’s ‘“* Lectures on Light ” 
Lockyer’s ‘‘ The Spectroscope and its Moieatione* 
[The Copyright of Articles in this Fournal is Reserved.| 
CONTENTS: OF) + No. XE. 
THE SATURNIAN SysTEM. By Richard A. Proctor, B.A., 
SceskcA.S. . : : - : : : - 
ON THE RELATION BETWEEN REFRACTED AND DIFFRACTED 
SPECTRA. By Mungo Ponton, F.R.S.E. 
OBSERVATIONS ON THE OPTICAL PHENOMENA OF THE 
ATMOSPHERE. By Samuel Barber, F.M.S. . 
RECENT CHANGES IN BRITISH ARTILLERY MATERIEL. By 
S. P. Oliver, Capt. R.A. : : : : ° 
THE GEOLOGICAL SURVEY OF THE UNITED KINGDOM . 3 
GALL’s DISCOVERY OF THE PHYSIOLOGY OF THE BRAIN, AND 
Its REcEPTION. By T. Symes Prideaux . - . 
Economy oF Fur. By F.C. Danvers, Assoc. Inst. C.E. 
NoTES OF AN ENQUIRY INTO THE PHENOMENA CALLED 
SPIRITUAL, DURING THE YEARS 1870-73. By William 
Crookes, F.R.S., &c. 
NOTICES OF SCIENTIFIC WORKS. 
Proctor’s * Light Science for Leisure Hours ”’ 
Jenkin’s “ Ele¢tricity and Magnetism ”’ 
Thorpe’s ‘‘ Quantitative Chemical Analysis” 
Shelley’s ‘‘ Workshop Appliances” 
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102 
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107 
10g 
