194 Miscellaneous Intelligence. 



proportion of which appears to be very small. They also contain 

 a fat colouring matter, analogous to that which is met with in some 

 yellow lichens, and which perhaps, by the progress of vegetation, 

 becomes the orange yellow colouring matter of the ripe fruit, and 

 forms, conjointly with the resin and the chlorophyle, the exterior 

 pellicle of the orange. 



The green fruit contain only a small quantity of resinous mat- 

 ter, but is remarkable for the considerable proportion of vegeto- 

 animal matter soluble in water and in alcohol, which forms the prin- 

 cipal constituent part of the internal medullary substance, and, 

 conjointly with albumen, forms the greater part of the imperfectly 

 developed seeds. 



The internal medullary substance is in great part transformed 

 into vegeto-animal matter by the action of caustic alkalies. 



The most advantageous form in which green oranges can be 

 employed in medicine appears, from this analysis, to be spirituous 

 tincture. 



M. Lebreton, in the chemical analysis of oranges which he has 

 instituted, found a substance which he calls hesperidine ; the same 

 as the neutral crystallizable substance of M. Brandes. The results 

 of these two chemists agree in other points also, particularly in what 

 concerns aurantine ; and yet, says M. Brandes, the two analyses were 

 made independently of each other. — Bull, des Sciences Medicates. 



37. Chemical Analysis of the Mineral Waters of Gastrin, in 

 Austria (Circle of Salzbourg), by Professor Himefeld, of Greiss- 

 walde. The waters of Gastrin contain, 



Sulphate of soda . 0.1866 Silex . . 0.0433 

 Chloride of sodium 0.0369 Magnesia . 0.0013 



Chloride of potassium 0.0183 Ox.ofmanganese0.0018 

 Carbonate of soda . 0.0083 Oxide of iron 0.0063 

 Carbonate of lime . 0.0442 Sulph. of sodium 0.0038 

 Traces of fluoride of lime, and of) 

 phosphate of alumine . . J 



0.3508 

 Water . . . • . . 999.6492 



1000.0000 

 Jahrbuch der Chemie una l'hysik. 



38. Analysis of Ipecacuanha Branca, Root of the Viola Ipeca- 

 cuanha, by M. Vauquelin. — The root of the Ipecacuanha branca 

 is of a pale white, divided into many branches, of the thickness of 

 a writing pen, much twisted, and contracted at unequal intervals. 

 Its fracture is short, the odour of it disagreeable, the taste acrid 

 and nauseous, the ligneous part is thicker than the bark. The 

 substances which compose this root are as follows by weight: — 

 Emetine, 1.50 ; Resin, 0.60 ; Gum, 0.20 ; Albumine, 0.30 ; Starch, 

 3.20 ; Matter crystallized in scales, 0.85 ; Ligneous matter, 7.00 j 



