1825 .J CoL Beattfoj/^s Astronomical Ohsef^ations, 113 



Article IV. 



Astronomical Observations, 1825. 

 By Col. Beaufoy, FRS. 



Bushel/ Heath, near Stanmore, 

 Latitude SP 37' 44'3" North. Longitude West in time 1' 20'93". 



Observed Transits of the Moon and Moon-culminating Stars over the Middle Wire of 

 the Transit Instrument in Siderial Time. 



1825. Stars. Transits. 



June28.— aOphiu 17h 04' 41-07" 



28.— S9 Ophiu IT 07 02-78 



28.— Moon's First or West Limb.... 17 08 22-88 



28.— eOphiu 17 11 21-17 



28.— e^Ophiu 17 20 60-11 



28.— fiOphiu. 17 32 5009 



July 1.— /Sagitt 19 35 1321 



1.— 57Sagitt 19 42 05-98 



1 ^^Sagitt 19 47 45-42 



1.— Moon's Second or East Limb .. 20 05 15-83 



1.— TrCapric 20 17 22-14 



1.— /jCapric 20 18 57-26 



1 rCapric 20 29 32-86 



Article V. 



On the Preparation of Acetate of Soda ; S^x. By Mr. N. Mill. 

 (To R. Phillips, Esq. FRS. &c.) 



sir, jiddingtoii'Square, Camberwell, 



In commenting on Dr. Hope's observations upon your stric- 

 tures on the Edinburgh Pharmacopaeia, Annals of Philosophy, 

 N. S. ii. p. 23, you give a process for procuring acetic acid by 

 the double decomposition of acetate of lead and sulphate of 

 soda ; and Dr. Henry, in the last edition of his Chemistry, in 

 quoting your paper, has added in parenthesis, that 4^ ounces of 

 acetate of Hme might be used instead of the acetate of lead. In 

 the proportions there stated (nor indeed in any other proportions )> 

 have I been able to effect a perfect decomposition of sulphate of 

 soda by acetate of lime. 



200 grains of acetate of lime, dried at a temperature of 430° or 

 440° Fahr. were decomposed by 400 grains of crystallized Sul- 

 phate of soda, the solution evaporated, and crystals obtained. 

 These crystals when dissolved in water and tested with the 

 muriate of barytes gave a copious precipitate of sulphate of 

 barytes, but neither sulphuric nor oxalic acid occasioned any 

 precipitate of lime. These crystals were not, therefore, acetate 



New Series, vol. x. i 



