[ '-^65 2 



LIX. Imiidry relative to the Zodaical Stars. 



To the Editors of the Philosophical Magazine and Journal. 

 YOUR readers must be aware that two portions of a Cata- 

 logue of Zodiacal Stars were published in volume 5S of 

 your Magazine. I am sorry this Catalogue has not been con- 

 tinued, and should be glad to know whether the idea of com- 

 pletmg It IS abandoned ; as I have felt at a loss for a correct 

 list of those stars which lie near the moon's path. 



A Catalogue of Stars, principally for the purpose of calcu- 

 lating occultations, is given in each of the editions oi Mackay 

 on the Longitude; but, in the 3d edition, it would appear, that 

 the precession in longitude, 8' 22", has also been erroneously 

 applied to the latitude, in reducing the list from 1800, as given 

 m the 2d edition, to 1810 in the 3d edition. 

 ... I am your most obedient servant, 



Aberdeen, April 8, 1823. George Innes. 



Note.-— We fully concur with our Correspondent as to the 

 great utility of the Tables, and much regret that the gentle- 

 man who favoured us with the places of the Zodiacal Stars 

 has discontinued his valuable labours : we trust, however, that 

 he may be induced to renew them, when he finds that they are 

 estimated as they deserve. — Editors. 



LX. Announcement that a Discovery has been made 'which 

 will render Pot- and PeurUashcs no lo7iger indispensable to 

 Bleachers. By Gavin Inglis, Esq. 



To the Editors of the Philosophiccd Magaziiie and Journal. 

 J AM indebted to you some long-promised papers for your 

 most valuable and useful Magazine, which shall still be 

 forthcoming. But I hope you will pardon my delay, when I 

 inform you of the result of some labours in whic?ii I have been 

 engaged. 



Do you remember that, many years ago, when we were in 

 the laboratory of the British Institution, in company with our 

 departed friend Mr. Robertson Buchannan, on seeing a small 

 galvanic trough, I observed that I expected to see the povCers 

 of galvanism m one shape or other a necessary appendage to 

 the apparatus of every bleach-field ? In some of our subsequent 

 conversations I sUited, that I considered all alkalies, alkaline 

 earths and substances mere modifications of the same base, and 

 that one day I hoped to see our pot-:ish taken from the lime 



Vol. fjl. No. 300. April 1823. L 1 rock 



