REPORT OF COMMITTEE ON OBSERVATORIES 83 



DM + 48° 1707 8''49°'i6'.3 + 48°35^9 0.9 10 and 10, Comp. of 02'i96 



48 1716 853 16.6 +4814.5 0.3 8.5 8.8 



50 1605 854 48.1 +5028.6 3.0 9.1 



51 1482 8 56 25.6 +51 12 .7 0.4 8.8 9.0 

 50 2174 15 19 25.3 +50 2.2 3 8.2 12 



50 2178 15 23 18.8 +5049.7 I 7.3 12 



49 2408 15 31 40.2 +49 16.9 0.4 8.2 8.6 



51 2030 15 42 21 .5 + 51 14 .3 0.3 8.5 8.5 



51 2077 16 15 57.9 +5154-7 3-0 8.9 



51 2105 16 24 22.1 +51 54.1 3 7.3 12 



51 2106 16 25 1.2 +51 45.4 4 6.2 13 



51 2130 1640 10.9 +5148.7 X 7-5 7-5 



I have not secured measures of these pairs. The first on the 

 list is of special interest on account of its being the companion of 

 a well-known third-magnitude double star, viz., 9 -rUrsse Majoris, 

 or Olige. 



Alpine Tavern is situated among the trees near the head of a 

 canyon. In its immediate vicinity there is no place that commands 

 a clear horizon. A broad trail leads from it to Inspiration point, 

 and narrow trails run up the mountain to the summit. No pack 

 animals are kept at Alpine Tavern, and on this account it was not 

 feasible to take the equipment to the summit of Mount Lowe. The 

 only place within reach of the tavern that seemed suitable for the 

 erection of the telescope was Inspiration point. The first observa- 

 tions were made here on May 7 and the last observations were made 

 May 13, just before the telescope was dismounted. 



At Inspiration point observations of the sun were made at inter- 

 vals throughout the forenoon and the earlier portions of the after- 

 noon, the first ones usually about 6.30 a. m. 



It was found that the day seeing here is similar to that at the 

 I/Owe Observatory. Early in the morning the seeing was some- 

 times good, but it never had that excellent quality which was noted 

 on one of the mornings at Echo mountain. During the forenoon 

 the seeing always became worse, and in the afternoon it was never 

 good. The mountain side to the east of this station was burned 

 over only a few years ago, and it has not become covered with 

 chaparral again. There is much surface exposed, and it is probable 

 that the radiation from this is one of the causes of the seeing becom- 

 ing worse as the day advanced. 



Tests of the night seeing were also made, but they were not con- 

 tinued later than midnight. Some of the nights were excellent, 

 •others were fair, and none of them were very bad. It was possible 



