SOLAR PHYSICS. 
By A. H. SWINTON, 
Member of the Entomological Societies of London, New York, 
and Stettin ; Correspondent U.S. Ent. Commission, &c. 
Price i s. 6 d., 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 definitely recurrent period of increase and 
decrease, many observers have traced a corresponding cycle in the occurrence 
of heat-waves, earthquakes, tempests, floods, abundant crops, inroads of 
destrudlive insedts, &c.” — Journal of Science. 
11 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.”' 
— G lasgow Evening Times. 
London: W. H. ALLEN & CO. 
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Special facilities for Biology in all its branches, and for Chemical Tech- 
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Distinguished References. 
Address, “ Confidence,” Office of the] Journal of Science, 3, Horse-Shoe 
Court, Ludgate Hill, E.C. 
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