P.EPORTS OF ASTRONOMICAL ORSERVATORIES. 047 



"The approximate ,ii'e().urai)liical of tlie Observatory P/'ak is: Longi- 

 tude, 121° 30' 40" W.; latitude, ;i7o 21' ;$" N. 



"The elevation of this point is 4,250 feet above the level of the sea. 

 The north peak, which is about three-fourths of a nnle distant, is 110 

 feet hifiher. There is a rid^e between, along' which is a good trail con- 

 necting the two peaks. Ine sides of the mountain, in most directions, 

 are verj^ steep, and form an acute angle at the sunnnit. The view from 

 the peaks is unobstructed in every directiou, there being no higher 

 ground within a radius of 100 miles. In this connection the rei)ort of 

 Messrs. Herrmann Bros., the engineers who surveyed the road, will be 

 of interest : 



" ' The scope of the horizon from IMount Hamilton takes in more ground, 

 according to Professor Whitney's Judgment, tiiau almost any similar 

 j)eak in the Uniteu States, there being no obstruction to the view from 

 any (luarter. It is remarkably free from fogs and clouds, as we had 

 ample occasion to observe during our last winter's stay on the mountain 

 when locating the road. The bearings of the most notable obJe(;ts are 

 as follows, the distances being taken, when out of our county, from our 

 most reliable maps : 



Mount Loma Prieta S. 35^ 5' W., lO.l miles. 



Mount Thayer S. 51° IS' W., 1 !);* '• 



MouutPoucher S. 38° 35' W., (I '^ 



Block Mountain S. 87° W., 27J, '• 



Mount Tamalpais N. 51° 20' W., ()(i 



Mission Peak K. 47° 55' W., KJ " 



MountStory N. 25o 45' W., lOj " 



Mount Diablo N. 21o 45' W., 394 " 



MountSantaua 8.37° E., 35 " 



Murphy's Peak S. C^ 5' W.,15 - 



" 'None of these points reach the altitude of Mount Hamilton. Of 

 those within a radius of 20 miles the Loma Prieta reaches 3,800 feet; 

 Thayer 3,550, and Block Mountain 2,800. All the rest are between 

 1,500 and 2,500 feet. Of the further peaks jNIount Diablo is 3,850.' " 



Mount Lookout, Eamilton County, Ohio. 

 Cincimiati Ohserva tory. 



Longitude from Washington, 29™ 29^33 W. 



Latitude, 39° 8' 20" I^. 



Authority for longitude: Washington Observations for 18 < 7, Appen- 

 dix IV. For latitude: prehmiuary reduction of unpublished observa- 

 tions. 



