29G On Milk Powder. [Oct. 



Comparison of the Variation in the Years 1813 and 1814. 



\ Morning 

 April ) \oi.n . . . 



( Evening. 



C Morning 

 May < Noon . .. 



K Rvening, 



C Morning 

 June <Noon... 



( Evening, 



C Morning 

 July <Noon... 



( Evening. 



( Morning 

 Aug. -?Noon . ., 



C Evening. 



1813. 



24° 09' 18" 



24 21 12 



24 15 25 



24 12 02 



24 20 54 



24 13 47 



24 12 35 



24 22 17 



24 16 04 



24 14 32 



24 23 04 



24 16 43 



24 15 55 



24 23 32 



24 16 08 



1814. 



24° 12' 53" 



24 23 53 



24 15 30 



24 12 49 



24 22 13 



24 16 14 



24 13 10 



24 22 48 



24 16 18 



24 13 29 



24 23 44 



24 17 00 



24 14 13 



24 23 48 



24 16 31 



Difference. 



3' 25" 



2 41 



05 



47 



1 19 



2 2T 

 35 

 31 

 44 



- 1 03 

 + 40 

 + 17 



- 1 42 

 + 16 

 + 23 



Article XIV. 



• Milk Powder. 



In the Annals of Philosophy for February last, p. 151, I men- 

 tion that Kirchoff, a Russian chemist, had proposed a method of 

 converting milk into a powder, in order to preserve it unaltered. 

 The following passages, copied from an old book, for the knowledge 

 of which I am indebted to a philosophical friend, show that this 

 discovery is not new, but was known many years ago. — T. 



Ohservalio Joh. Baptistce IVerloschnigg. 



Qui hactenus lac suis medicationibus adhibuerint, crudum, ex- 

 crementis nondum purgatum et in quintum esse deductum, hinc 

 factum ut saepius ob sui in ventriculo coagulationem enormia eru- 

 peiint mala ; et quia plura et plura in mcdicina nostri ignorarunt 

 antecessores, qute tios apprime nunc novimus, plurima et nos igno- 

 ramus qua? successoribus erunt perspecta : sic nemo medicorum 

 praeteritis seculis lac in pulverem redigere, sordibus liberare, 

 illudque cuivis tempcramento aptum rcddere novit. 



Quod tamen exeellentissimus vir meus amicus singularis Domi- 

 nus Ludovicus Tcsti, Med. Professor Venetiis, optime novit. Hie 

 enim certo spagyrico* mysteiio siibslantiam laclis in pulverem al- 

 Vescentem dulitin (quod arcanum opportuno tempore in humanae 

 rniserte solatium se manifestare promittit) convertit. Fabrefacit 

 itaque ox lacte vaccino, melius ex muliebri (verum hoc solum prin- 

 pipibus et dh uWms foiet superabile), saccharum et sal lactis, utrum- 

 que iu quibus acidum et acre peccat, optatissimum, tutissimum, et 



* Chemical. 



