Mjf. Analyfis of the Gad'Aimic, 



combination? above mentioned ; lime and barytes produce" 



much more fenfibly the fame effect.. 



ioth, The oxalic acid, and confequenfly the oxalat ol 

 ammonia, form in its folutions precipitates which have an 

 appearance abfolufely fimiiar to that of the muriat of filverr 

 glucina with the oxalic acid forms a very foluble fait — a new 

 difference between thefe two earths. 



nth, Prufilat of potafh cryftallifed and re-diffolvcd in 

 water occafions, in the folutions of this earth by acids, a white 

 granulated depolit ; but this is not the cafe in folutions of 

 glucina. 



1 2th, The phofphoric acid does not precipitate it from 

 the other acids, but the phofphat of foda feparates it under 

 the form of gelatinous white flakes. 



13th, It appears to me that it has more affinity for, at 

 kait, fome of the acids, than glucina has. 



14th, It precipitates an infufion of gall-nuts in brown 

 flakes. 



From what I have faid, a great number of analogies may 

 without doubt be obferved between this earth and glucina; 

 but, at the fame time, there appear differences which do not 

 permit us to confound thefe two earths. Thefe differences 

 chiefly are, the infolubility of the vttria and the folubility of 

 p-lucina in fixed cauftrc alkalies ; the little folubility of the 

 fulphat of the vttria, and the great, folubility of glucina, in 

 the fulphuric acid ; the difficult; folubility of yttria, and the 

 ready folubility of glucina, in carbonat of ammonia ; the 

 precipitation of yttria, and non-precipitation of glucina, from 

 their folutions bv oxalic acid and the pruffiat of potafh. 



Here then we have nine kinds of earth very diftincr. bv the 

 properties peculiar to each : foon, no doubt, we (hall reckon 

 ten, if, as we have reafon to preiagc from the accuracy of 

 M. Tromfdorf, the exiftence of that which he has lately an- 

 nounced under the name of augujl r in the Saxon beryl, be 

 real i fed. 



Thefe earths will increafe in a wonderful manner the 

 number of the faline combinations, which are already very 

 confiderable, and will furnifh to chemifts a multitude of new 

 properties to be ftudied. It is to be wifhed that they may 



find 



