OPPOSITION OF MASS. 1849-1850, 



Remarks. 



The observations made by me, unless where otherwise stated, are only tolerably good, both the planet and star having a wave-like motion, very fre 

 quently rendering it difficult to perfect a contact at the centre wire. J. M. G. 

 a Good observation. d Recorded 8.0s. at wire D. 

 l&amp;gt; The remaining measures by Mr. MacRae. c Good, 

 c Not good, and not incorporated in the means. / Micrometer recorded +7.48. 



