462 MOCK SUNS. 



NOTICE OF MOCK SUNS, AS SEEN NEAR THE MUSKOKA 

 RIVER IN NOVEMBER, 1861. 



BY A. CLIFFORD THOMSON, P. L. S. 



While camped near the mouth of theMuskoka River, Canada West, 

 on the 10th of November, 1861, I observed at about 9.40 A.M., the 

 somewhat remarkable phenomenon of seven mock suns, as shewn in 

 the accompanying sketch. In this drawing the H. H. represents 

 the horizon, and the point z. the zenith. Unfortunately, I had not 

 any instrument with me at the time, to enable me to note the posi- 



tion of the halos ; but two of these were quite excentric, both with 

 regard to the sun and the zenith. The sun was too bright to be 

 regarded with the naked eye, though the atmosphere was slightly 

 hazy. The wind was light, and from the N. W. 



I venture to send this brief notice to the Canadian Journal, as I 

 believe the phenomenon to which it refers, is rarely witnessed in so 

 southern a latitude. It was observed on this occasion at Orillia and 

 other places more or less distant from the point at which the above 

 sketch was taken on the Muskoka River. The latitude of this point 

 is 45° 10' N. 



