Discoveries in the Polar Regions. 



361 



remained torpid. In the springs, musk-oxen, rein-deer, togje- 

 ther with abundance of sea fowls and ptarmagans, come from 

 the continent, the quadrupeds travelling over the ice. 



Such are the principal details which we have been able to 

 collect, respecting this highly interesting and successful voyage 

 of discovery, the results of which are in every way highly 

 honourable to Captain Parry and his intrepid associates, and 

 also reflect much credit upon those by whom the expedition 

 was suggested and fitted out. 



The public will no doubt look forward with much earnestness 

 to the official publication of Captain Parry*s narrative, which, 

 we understand, may be expected early in the spring. 



Art. XIV. On the Connexion of Electric and Magnetic 

 Phenomena. 



No discovery has, for a long time, so strongly excited the 

 attention of the philosophic world, as that of the magnetic phae- 

 nomena belonging to the Voltaic apparatus ; we shall, there- 

 fore, endeavour to give our readers a short statement of what 

 has been done in this department of scientific inquiry. 



1. If the extremes of a Voltaic battery (we will suppose it to 

 consist of 20 pairs of 8 inch plates,^ be connected by a platinum 

 wire, it becomes heated, and, if of sufficiently small diameter, 

 it suffers ignition. Let us suppose such a wire, W, lying upon 

 the supports P and N, which represent the positive and negative 



W, 



N 



conductors of the active Voltaic apparatus, P being connected 

 with the first zinc plate, and N with the last copper plate; 

 upon bringing the north pole of a common magnetic needle 

 Vol. X. 2 B 



