388 



REPORT — 1867. 



No. /o>' all parts, not less than 70 p. min. 

 , „ „ 3590 meteors." 



" N"umber of meteors .seen, in lialf liours, in a third part of the sky. 



b m 

 In the half hour ending 12 30 

 Number of meteors seen 56 



Estimated, /or all the sky 170 



" Time of Max., 1'' 0"' a.m.— P 2.5™ a.m., 

 Hour of Max., 12i> 30"> a.m.— l^ 30™ a.m.. 



At Aberdeen.- — Report of Mr. D. Gill to Professor Grant, on the meteors 

 of the evening of Tuesday the 13th of November, and morning of "Wednesday 

 the 14th of November 1866. 



" Two observers took their stations at 10'' p.m. 



" The evening was beautifully clear. A low bank of clouds surrounded 

 the horizon to a height of 3° or 4° ; but this soon cleared off. 



" A breeze from the west became stronger as the night advanced, but no 

 cloud appeared until 2'' 30"* on the morning of the 14th, and by 3 o'clock the 

 sky was totally obscured. Aurora was visible in regular rays from the north. 



" From the accompanying journal, giving details of observations up till 

 12'' 48|"' A.M., it will be seen that the number of meteors seen in the previous 

 minute was 200. 



" From this time meteors, generally with nuclei of the brilliancy of Venus, 

 and apparently emanating from Leo, shot out in all directions in such great 

 numbers as to defy computation. 



*' By 1'' 30'" the numbers had so fallen off that from that moment 100 

 were counted in 3'" 57' (about 25 per minute), and at 2" the same number 

 in 5™ 20", or a little less than twenty per minute. The following is a list of 

 the numbers visible as observed : — 



" A very striking feature is the markedly rapid increase compared with 

 the gradual decrease. A curve representing the observations would indicate 

 bands, or periods of uniform numbers." 



At Glasgow. — After midnight, until 1 o'clock, passing clouds from the 

 west occasionally obscured the sky. From 1 o'clock until after 3 o'clock a.m., 

 the sky was perfectly free from clouds. The rate of apparition of the me- 

 teors was registered at intervals thi-oughout the shower by Professor Grant, as 

 given in the subjoined list. Some notes of their numbers from Mr. Herschel's 

 observations are also placed in the register, and are denoted by the letter H. 

 Those numbers observed by Professor Grant are designated by the letter G. 



