OP ARTS AND SCIENCES. 

 TABLE V. — Continued. 



281 



Additional evidence regarding the conditions under which these ob- 

 servations were made is furni.shed by the following notes. 



1. Sun shining, snow on ground. linages somewhat unsteady. 

 12. ^invisible, A and C difficult, owing to darkness. 



15. Wind very high. 



16. Image of ^ unsteady. 



17. Hazy to south, but sun shining brightly. 



20. The readings for A are 74.8, 79.7, and 98.8; for B. 03.G, 

 07.8, and 26.3; for C 7G.9, 81.2, and 98.2. The cause of this curi- 

 ous change is not certain. It was obvious to the eye, the cross-wires 



