i-2.] 



♦ KNOWLEDGE ♦ 



373 



but as he used a binocular, and gave some time to the 

 study of tlio comet's appearance, the peculiarity was 

 doubtless correctly indicated by him. I have not felt 



by showing only those features which at least five of the 

 observers depict, and also others who have sent drawings 

 to other periodicals, [would give a more correct idea of 



Fig. 2. Showin<; the 

 ));ith of the Comet in 

 .November, the stars 

 being as seen : — 

 On Nov. C, at 4 a.m. 



Nov. 10, at 3.45 a.m. 



Nov. li, at 3.30 a.m. 



Nov. IS, at 3.15 a.m. 



Nov. 21. at 3 a.m. 



Nov. 25, at 3.43 a.m. 



Nov. 29, at 3.30 a.m. 



Dec. 2, at 3.15 a.m. 



'lUstified, liowever, in doing more tlvan slightly strengthen I the comet's real aspect thin ti.x or seven discordant 

 the delineation of this southern fork, as shown in three of draw ings. 



the pictures sent me. I have not thought it well to send 

 several of the pictures to the engraver, simply because the 



Fig. 3. Sliowing tlio 

 path of the Comet in 

 November, the stara 

 being as seen :— 

 On Nov. 6, at 6 a.m. 



Nov. 10, at 5.45 a.m. 



Nov. 14, at 5.30 a.m. 



Nov. 18, at 5.15 a.m. 



Nov. 21, at 3 a.m. 



Nov. 25. at 3.45 a.m. 



Nov. 29, at 3.30 a.m. 



Vec. 2, at 3.15 a.m. 



I may note that these observers are in error who regard 

 the dark streak behind the nucleus as the shadow of the 

 latter. Whatever this characteristic feature of so many 

 comets may be, it is not lliat. 



result would have been bewildering to those who have not 

 yet seen the comet On the other hand, I could not select 

 any single picture. It seemed to me that a picture formed 



EARTHQUAKES IN THE BRITISH 

 ISLES.— II. 



(Conliniied from paye 341.) 



VFTER the great shock of 1275, more than a century 

 passed without any remarkable earthquakes. In 

 .'..■<-2 a shock took place by which several churches in the 

 south east of England were thrown down, and this was, we 

 lirlieve, the last earthquake by which property of any 

 consequence was destroyed. 



In recent times, earthquakes have taken pl.-\ce with 

 tolerabl.' frequency in the T.ritish Isles. In fact, of the 

 three hundred earthquakes recorded as having disturWd 

 our country, nearly two thirds belong to the present 

 century. 



