OBSERVATIONS. 



clxvi 



A. OBSERVATIONS OF MARS II, WITH THE SANTIAGO EQUATORIAL. 



The following corrections have been made to the printed observations : 



Page 90 Dec. 20 No. 37, for .79 read 8.79. 



106 31 15, Micr. = 5&quot;. 69 has been used instead of 5.31, on the assumption that the comple 



mentary decimal was inadvertently read off from the micrometer head. 

 This gives A&amp;lt;5 = llr.57. 

 129 Jan. 17 29, for 2h. 8m. 7s. 74, read Sh. 8m. 7s. 74. 



137 24 4, The A&amp;lt;5 21r.29 seems to have been accidentally written instead of 22r.29, and this hypo 



thesis was evidently made in taking the printed mean, although the original MS. gives 

 the micrometer-reading as printed. This assumption of an error of Ir. has been made 

 in the computation, and the printed mean therefore employed. 



138 24 38, for 22.11 read 22.01. 

 153,4,5, Feb. 2 A&amp;lt;5 should be positive. 



166 line 1, for Feb. 12 read Feb. 13. 



209 Mar. 14 No. 14, &quot; 1.18 &quot; 7.18. 

 212 15 68, &quot; 0.78 &quot; 0.79. 



The correspouing changes in the tables of results will then be : 



Page 88, December 19 line 2 for 2 8&quot;.01, read 2 8&quot;. 11. 



4 &quot; 2 12 .89, &quot; 2 12 .86. 



107, 31 1 &quot; llr. 269=3 39.&quot;68 &quot; llr. 277 =3 39&quot;. 79. 



January 



116, 

 127, 



137, 



139, 



141, 

 142, 



151, 



153, February 



155, 

 157, 

 162, 



176, 



178, 



181, 



184, 



207, March 



213, 



AJ should be positive. 



for 



for 



.65. 



18. 



