CHAP, v.] Retrospection. 145 



have been secured and described in one minute of 

 time/' 



The ten years from 1788 to 1798, although a blank 

 as regards her personal history the Eecollections 

 cease with her brother's marriage were among the 

 busiest of her life, and in the year last men- 

 tioned the Eoyal Society published two of her works, 

 namely, "A Catalogue of 860 Stars observed by 

 Flamsteed, but not included in the British Cata- 

 logue," and "A General Index of Keference to every 

 Observation of every Star in the above-mentioned 

 British Catalogue." It is in reference to these that 

 she wrote the very interesting letter to the Astronomer 

 Eoyal, which is given among others, in its place, in 

 the Journal. But another work, which was not 

 published, was the most valuable, as it was the most 

 laborious of all her undertakings. This was " The 

 Eeduction and Arrangement in the form of a Cata- 

 logue, in Zones, of all the Star-clusters and Nebulae 

 observed by Sir W. Herschel in his Sweeps." It sup- 

 plied the needful data for Sir John Herschel when he 

 undertook the review of the nebulse of the northern 

 hemisphere ; and it was for this that the Gold Medal 

 of the Eoyal Astronomical Society was voted to her 

 in 1828, followed by the extraordinary distinction of 

 an Honorary Membership. This (Jatalogue was not 

 completed until after her return to Hanover, and Sir 

 David Brewstcr wrote of it as "a work of immense 



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