C vi 3 
VII. Remarks on a correction of the solar tables required by Mr. 
South’s observations. By G. B. Airy, Esq. M. A. Fellow of 
Trinity College , Cambridge, and Lucasian Professor of Ma- 
thematics in the University of Cambridge. Communicated by 
Dr. Young, F. R . S * &c. - - page 65 
VIII. On the mutual action of the particles of magnetic bodies, 
and on the law of variation of the magnetic forces generated at 
different distances during rotation. By S. H. Christie, Esq. 
M. A. F. R. S. - - - - 71 
IX. Corrections to the reductions of Lieutenant Foster’s Ob- 
servations on Atmospherical Refractions at Port Bowen ; with 
Addenda to the Table of Magnetic Intensities at the same 
place. By Lieutenant Henry Foster, R , JST. F. R. S. 122 
X. Correction of an error in a Paper published in the Philoso- 
phical Transactions , entitled, “ On the Parallax of the fixed 
Stars.” By J. F. W. Herschel, Esq. F.R. S. - 12 6 
ERRATA, Part IV. i8z6. 
Page 4, line i, for “ 9 ten-thousandths,” read “ 9 thousandths.” 
In Plate VI. page 189, insert the letter “ N ” at the left hand extremity of the 
horizontal diameter in Fig. 4 ; and at the upper extremity of the vertical 
diameter in Fig. 5, insert the letter “ e.” 
Directions to the Binder. 
Plates I. II. and III. should face page 124, instead of 174. 
