Who was she? His sister. Miss Herschel it was who by _night_ acted as his amanuensis; she it was whose pen conveyed to paper his observations as they issued from his lips; she it was who noted the night ascensions and polar distances of the objects observed; she it was who, having passed the night near the instrument, took the rough manuscripts to her cottage at the dawn of day, and produced a fair copy of the night's work on the following morning; she it was who planned the labour of each succeeding night; she it was who reduced every observation, made every calculation; she it was who arranged everything in systematic order; and she it was who helped him to obtain his imperishable name. "But her claims to our gratitude do not end here. As an original observer she demands, and I am sure she has, our unfeigned thanks. Occasionally, her immediate attendance during the observations could be dispensed with. Did she pass the night in repose? No such thing. Wherever her brother was, there you were sure to find her. A sweeper planted on the lawn became her object of amusement; but her amusements were of the higher order, and to them we stand indebted for the discovery of the comet of 1786, of the comet of 1788, of the comet of 1791, of the comet of 1793, of the comet of 1795, since rendered familiar to us by the remarkable discovery of Encke. Many also of the nebulæ contained in Sir W. Herschel's catalogues were detected by her during these hours of enjoyment. Indeed, in looking at the joint labours of these extraordinary personages, we scarcely know whether most to admire the intellectual power of the brother, or the unconquerable industry of the sister." A few years after this, in 1835, Miss Herschel was, along with Mrs. Somerville, made an Honorary Member of the Astronomical Society. The report of the council to the annual meeting contains the following well deserved words of praise:--