322 



Scientific Intelligence. 



examined, furnishes an explanation for various attendant phe- 

 nomena, for example, a third maximum of pressure in high lati- 

 tudes in winter, the so-called inversion in the diurnal period near 

 the pole, and other points. 



14. An attempt to show that the earth being a magnet drags 

 ether ivith it; by William Rollins. (.Communicated.) — The 

 writer has carried on a series of experiments, designed to show 



% 



PLAN OF. OUTGOING RAYS 



0- 



h% - 



% 



PLAN OF INCOMING RAYS 



-o- 



!-> 



Fig. 1. Plan of Refractometer. 



whether a revolving magnet, and hence the earth, drags ether with 

 it. Although the results were not conclusive, one of the methods 

 used is mentioned here, since the refractometer employed is likely 



