SOLAR PHYSICS. 
By A. H. SWINTON, 
Member of the Entomological Societies of London, New York, 
and Stettin ; Correspondent U.S. Ent. Commission, &c. 
Price 'id., in Ornamental Cover , Illustrated. 
“The table of Sun Cycles is explained, and- with a clear apprehension of 
this the reader can post himself up in knowledge, the mere idea of which would 
have stunned his ancestors.” — Surrey Advertiser. 
“Allow the Sun spots to have a definite'y recurrent period of increase and 
decrease, many observers have trr.ced a corresponding cycle in the occurrence 
of heat waves, earthquakes, tempests, floods, abundant crops, inroads of 
destructive inse&s. &c.” — Journal of Science. 
“ Mr. Swinton has here expended on this research an immense amount of 
time and labour. The influence of the solar spots has been suspedted by the 
greatest minds of the age.” — Liverpool Mercury. 
“ The subjedt is one of great interest, and is deserving of public attention.” 
— Glasgow Evening Times. 
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