7* 



ASTRONOMICAL OBSERVATIONS 



that anv clock yet invented could not fhew the differ* 

 ence actually* 



The difference of their errors was 5",6, and thence 

 the error of the tranfit inftrument was only 1246", 16 

 at the horizon, and the diftance of the wires of the te- 

 lefcope is 1478". 



Quadrant. 



30.00 



^0.30 



6th March, Equal Altitudes, by a Had ley's 

 Quadrant and Quickjilver, 



riling - 20.29.41 



falling - 27.42.30 



rifing - 20.32.14 



falling - 27.39.56 



6.05,5 

 6.05,0 



Mean - 6.05,25 

 Equation of equal altitudes - 7,10 



5-58 5 i5 

 This 



