B. TERRESTRIAL PHYSICS AND METEOROLOGY. 35 



to have spells of irregularity from which they recovered very 

 slowly. He did not find any upon which he could rely for 

 heights above 1000 feet. Proceedings Col. Academy. 



ANEROID AND HEECUEIAL "BAEOMETEES. 



In a comparison of the aneroid and mercurial barometers, 

 made throughout a recent voyage across the Atlantic, it was 

 ascertained that the ordinary indications were the same in 

 both instruments, but that the aneroid was to be considered 

 as more sensitive to atmospheric changes. It always indi- 

 cated the approach of foul weather, or the change to fair, in 

 advance of the rival instrument. 8 A,Decembe?', 1870, 224. 



COMPAEATIVE FEEQUENCY OF THUNDEE-STOEMS. 



From a table by Dr. Klein, showing the mean annual fre- 

 quency of thunder-storms in different localities, Java appears 

 to be the most favored in this respect, one locality being 

 credited with 159 storms, and another with 110. Beyrout, 

 in Syria, can count only four, while Sitka has an average of 

 only one and a half per annum, as shown by a period of nine 

 years. 1 7 (7, no date. 



METE.0E0L0GICAL PHENOMENA IN CHILE. 



An unusual phenomenon was witnessed lately at Serena, in 

 Chile, on the 7th ult., due to the reflection of the sun on some 

 masses of clouds which extended in the form of cirro cumuli 

 along the Bay of Coquimbo. The sun's disk was seen some- 

 what opaque in the centre of a great cloud of a fine golden 

 color, along the edges of which were seven more disks of a 

 brighter golden tint appearing as satellites around the set- 

 ting orb. In the lower part of the cloud the image of part 

 of the Bay of Coquimbo was reflected, as if seen in a gigantic 

 mirror. The phenomena were visible for the space of seven- 

 teen minutes, when they sank gradually below the horizon, 

 like fugitive stars in the ocean. Panama Star and Herald, 

 November 2,1871. 



CLIMATE OF MICHIGAN. 



Professor "Winchell, in a late magazine article upon the 

 climate of Michigan, adduces figures to show that while the 

 July climate of Michigan is cooler than that of Wisconsin 



