Intelligence and Miscellaneous Articles* 421 



At the meeting on the 5th of October, a communication from 

 Mr. E. Doubleday was read relative to the entire destruction of a 

 beehive by the moth Galleria cereana. Mr. Johnstone, of the island 

 of Grenada, exhibited several living sugar-cane plants attacked by 

 the Cane-fly (Delphax saccharivora), and gave an account of the de- 

 structive progress of this minute insect in the West India islands. 

 Various remarkable insects were exhibited, and the following me- 

 moirs were read : On the internal anatomy of the larva of Cafosoma 

 Sycophanta, by Dr. Hermann Burmeister of Berlin; Notice of the 

 various entomological subjects brought before the assembly of Ger- 

 man naturalists at the meeting in September last at Bonn ; by 

 Mr. J. O. Westwood. 



The chairman announced that the second part of the Society's 

 Transactions was ready for delivery. 



LI. Intelligence and Miscellaneous Articles. 

 m. poggendorff's vindication of prof, faraday's right 



OF PRIORITY TO THE DISCOVERY OF DEFINITE ELECTRO- 

 LYTIC ACTION. 



To the Editors of the Philosophical Magazine and Journal of Science. 

 Gentlemen, 



I REQUEST the favour of your inserting the inclosed translation 

 of an article by Poggendorff(in his Journal for June 1835) re- 

 lative to a discovery of Mr. Faraday, by which you will oblige, 

 amongst others, 



One of his Pupils, 

 7, Curzon-street, Oct. 14, 1835. Edward Solly, Jun. 



" In the number of the Annates de Chimie et de Physique for 

 January * this year, will be found a short paper by Mr. Matteuci of 

 Florence, which all those who have followed the important investi- 

 gations of Mr. Faraday cannot read without surprise, as they will 

 observe that the author comes forward with no less a discovery than 

 that of the definite electrolytic action, which he explains in a less 

 perfect, but similar way to that of the English philosopher. Mr. 

 Matteuci's paper is dated October 1834 ; Mr. Faraday's seventh, 

 on the contrary, is dated the 1st of December 1833 : moreover, his 

 fourth paper, in which the law before mentioned is already clearly 

 stated, is of the 15th of April of the same year. To whom, there- 

 fore, the honour of priority in this case belongs is self-evident. It 

 is possible, though not very probable, that the works of other coun- 

 tries come very slowly to the knowledge of the Florentine philo- 



• [It may be proper to observe, in order that this subject may be fully 

 understood, that the publication of the numbers of the Annates de Chimie 

 is always several months subsequent to the date they bear; thus, the num- 

 ber for January was not received in London until June. — Edit.] 



