Eambaut — On the Lunar Eclipse of January 28, 1888. 41 



beside me a graduated card-board circle, by the aid of which I 

 was able to estimate the position angles with sufficient accuracy for 

 the purpose. For a short time, however, about the middle of 

 totality I was not able to see the wires, which I had omitted to 

 illuminate, and I had to determine the direction of the parallel by 

 unclamping the telescope and moving it in B,. A. 



Ten minutes before the total phase, I was unable to find a star 

 of the 11th magnitude, owing to the brightness of the moon ; but 

 at five minutes before this commenced the occultation of a 10th 

 magnitude star was well seen. In the interval of an hour and 

 three quarters, during which the moon was dark enough for this 

 kind of observation, I obtained 35 occultations — 17 disappearances, 

 and 18 reappearances, including both phases for 11 stars. As the 

 eastern limb brightened, the difficulty due to irradiation became 

 more and more marked, and so much as 18 m before the end of 

 totality, a star, whose magnitude is 9^-, appeared for a few seconds 

 projected on the disc. 



The following is a list of the occultations observed, in which 

 the numbers of the stars refer to Dr. Dollen's list : — 



