680 
OBITUARY. 
ARMY APPOINTMENTS. 
War Office, Pall Mall, Aug 5, 1864. 
11th Hussars.—Veterinary-Surgeon David Paley, from the 
Royal Artillery, to be Veterinary-Surgeon, vice Ferris, who 
exchanges. 
Royal Artillery.—Veterinary-Surgeon John Ferris, from 
the 11th Hussars, to be Veterinary-Surgeon, vice Paley. 
MISCELLANEA. 
SEPARATION OP SMALL QUANTITIES OP LIME AND 
MAGNESIA. 
The method of separting lime and magnesia by means of 
oxalate of ammonia does not succeed when the lime present 
in the mixture is a very small amount. In such a case the 
lime is either not precipitated at all or but very incompletely. 
Free ammonia assists in hindering the precipitation, and 
when it has evaporated crystals are obtained, which consist 
of oxalate of lime with oxalate of magnesia, and the liquid still 
contains lime. A better result, Scheerer says, is obtained by 
converting the alkaline earths into neutral sulphates, and 
adding alcohol to the aqueous solution until a persistent 
cloudiness is produced. After some hours all the sulphate 
of lime is deposited. When too much alcohol has been used, 
some of the sulphate of magnesia is deposited as well; it is 
sufficient then to redissolve the sulphates in water and pre¬ 
cipitate a second time with alcohol; or the lime may now 
be thrown down by the oxalate of ammonia. The magnesia 
not being in excess, no longer hinders the precipitation. 
OBITUARY. 
Died recently, Thomas Burton, M.R.C.V.S. London. 
His diploma bears date, July 7th, 1843. 
Also John Brown, M.R.C.V.S., Warwick. His diploma 
bears date May 31, 1843. 
ERRATA IN' NO. 410. 
Page 50S, line 14 from the bottom, for lc lacerated/’ read “ lacerable.” 
„ 634, for “Mr. Win. Caltell, 5> read“ Mr. Wm. Cliattell \**/or “ Wick- 
worth,” read “ Wirksworth.” 
