190 SOME ACCOUNT OF THE 



The five obfervatories conftrucled by Jayajinha ftil! 

 exift, in a ftate more or lefs perfect. Having had the 

 opportunity of examining four of the number, I fhall 

 fubjoin a fhort defcription of them. 



The obfervatory at Dehly is fttuated without the 

 walls of the city, at the diftance of one mile and a 

 quarter ; it lies S. 22 deg. W. from the Jiimmah Muf- 

 jiJ, at the diftance of a mile and three quarters, its 

 latitude 28 deg. 37 min. 37 lee. N. * longitude 77 

 deg. 2 min. 27 fee. E. from Greenwich ; it confifts of 

 feveral detached buildings : 



1 . A large Equatorial Dial, of the form reprefented 

 at the letter A in Sir Robert Barker s defcription of 

 the Benares obfervatory, (Ph. Tranf. vol. LXVII.) its 

 form is pretty entire, but the edges of the gnomon, and 

 thofeof the circle on whichthedegreesweremarked,are 

 broken in feveral places. The length of the gnomon, 

 meafured with a chord, I found to be 118 feet feven 

 inches, reckoning its elevation equal to the latitude of 

 the obfervatory, 28 deg. 37 min.; this gives the length 

 of the bafe 104 feet one inch, and the perpendicular 

 height 56 feet nine inches ; but, the ground being 

 lower at the north end, the actual elevation at the top 

 of the gnomon above it is more than this quantity. 

 This is the internment called by Jayajinha^ femrat 

 Yutiter (the prince of dials). It is built of ftone, but 

 the edges of the gnomon and of the arches, where the 

 graduation was, were of white marble, a few fmall 

 portions of which only remain. 



2. At a little diftance from this inftrument towards 

 the N. W. is another equatorial dial, more entire, but 

 Smaller, and of a different conftruclion. In the mid- 

 dle ftands a gnomon, which, as ufual in thefe build- 

 ings, contains a flair up to the top. On each fide of 



* The latitude afligned to it in the Zeej Mahommedjhaby is 28 

 de£. 37:-:. 



this 



