THE MAGAZINE 



OF 



NATURAL HISTORY. 



MAY, 1834. 



ORIGINAL COMMUNICATIONS. 



Art. I. On certain recent Meteoric Phenomena, Vicissitudes in the 

 Seasons, prevalent Disorders, Sfc, contemporaneous, and in sup- 

 posed connection, with Volcanic Emanations. No. 2. By the 

 Rev. W. B. Clarke, A.M. F.G.S. &c. 



" Quid sit, unde sit, quare sit quod ipsutn explorare et eruere sine 



universitatis inquisitione non possumus, cum ita cohaerentia, connexa, 

 concatenata sint." — M. Minutius Felix, xvii. 



[" Together let us beat this ample field. 

 Try what the open, what the covert yield ; 

 The latent tracts, the giddy heights explore." 



Pofe'5 Essay on Man.} 



Having already [in VI. 289. to 308.] developed the prin- 

 cipal bearings of this obscure topic, upon w^hich I am desirous 

 of throwing, if possible, a ray of light, there can be no neces- 

 sity to recapitulate them. I shall, therefore, select from an 

 abundance of facts in my possession such as appear most 

 conducive to that end ; and, in order to prevent the confusion 

 vi^hich arises from embracing too many points of view at once 

 (although they are, as the motto aptly states them to be, 

 " cohaerentia, connexa, concatenata," in a way scarcely credible 

 by a person who has not entered on the enquiry), consider,, in 

 this and some following papers, the heads of the argument 

 under distinct and individual illustrations. The present will 

 have reference to the testimony afforded to my position by 



The occasional Increase, Migrations, and Irruptions of Ani- 

 mals, Birds, Insects, and Fishes, during Epochs of terrestrial and 

 atmospherical Convulsion, — In p. 1 8 1 . are some observations on 

 an extraordinary irruption of mice in Selkirkshire and Ross- 

 shire ; and, though W. L., the author of those observations, 

 VoL.VIL — No. sg. o 



