On the Circulation and Distribution of the Atmosphere. 199 

 signs and correcting an accidental or typographical error, viz. 

 ~ is printed instead of J T ). But, from the foregoing"equations, 

 proceeding to eliminate x\ y', p', we have 



and thence 



c 

 that is, 



s/i 



x + c 1 



x-Yc' q. / 2 



c V c 2 

 whence 



or, what is the same thing, 



„ # + £.•' j? + e' 



the before- mentioned integral of the differential equation 



2/=c\/TT?, 



which, according to Professor Challis, is the integral, not of the 

 equation A = 0, but of the other equation Ap = 0. 

 Edinburgh, August 10, 18/1. 



XXIV. On the General Circulation and Distribution of the Atmo - 

 sphere. By Professor J. D. Everett, of Queen's College, 

 Belfast*. 



AT the Meeting of the British Association in Dublin in 1857 

 a paper was read by Professor James Thomson "On the 

 Grand Currents of Atmospheric Circulation," in which certain 

 new views were propounded, differing greatly from the popularly 

 received theory of Lieutenant Maury t, and accounting for the 



* Communicated by the Author, having been read to the British Asso- 

 ciation at Edinburgh (Section A), August 1871. 



t The theory of atmospheric circulation which is adopted by Maury is 



