elements of materia medica.
abundance of. them to the phosphate as it circulates through the k 011 ^But as soon as the blood is freed from the madder by excreUML^,serum then attracts the colouring matter, and in a ^ le T iTweldabstracts it. liedemann and Gmelm ( Vers. u. d. Wegen <tujSubst. S. 7) could not detect the colouring matter in the chyle; afl thered tint of the serum prevented them ascertaining its existence ^ ^blood, though of this scarcely a doubt can exist, inasmuch as 1been found in the excretions (for example, urine, milk, and sweat)- y c j,Uses. —It was formerly a favourite remedy in jaundice, i* 1disease Sydenham used it (Sydenham’s Works, by Dr. Pechey, p-4th ed. 1705). On account of its capability of tinging the bodiesit has been recommended in rickets and mollities ossium, on thesition of its promoting the deposition of bone earth ( Journ■t. xxxvii. 1772) ; but this notion appears to be groundless. H onje rpj lt;Exper.) employed it as an emmenagogue in uterine complaints-dose of it is 5ss. to 3ij. three or four times a day.
Other Medicinal and Dietetical Rubiacere. ^ 0 (
Psycho'tria emet'ica is a native of Colombia , Peru , and probably of "d 1 ® 1- P. t a ,idSouth America . Its roots constitute the striated ipecacuanha of Richard, Gul , ie jtbe rMerat; the black or Peruvian ipecacuanha of some other authors. They are . tefS ec-simulated nor undulated, but longitudinally striated. They have deep circular ilions at various distances, giving them the appearance of being articulated; ay |, a veslight force is used, they fracture at these parts. As met with in commerce, 1 7 a rrexternally a blackish-gray colour, with a brownish tinge; but when fresh, e „tralsaid to be dirty reddish-gray. Their fracture is resinous: the nieditullium, 0 visibleligneous cord, is yellowish, and perforated by numerous holes, which are ve A| ] jjtjckbv a magnifier: the cortical portion is sofdsh, easily separable, and of acolour, becoming much deeper when moistened Its powder is deep gray- - .,- c ggiito the analysis of Pelletier, this root consists of— emetina 9, fatty matter 12, 9 aa trace, gum, starch , and ligneous matter 79. ■ \ w b ra '
Richardso’nia sca'bra ( R. braziliensis, Gomez) is a native of the Brazils, x . e e(yU s »tnada, Peru , &c. Its root is the undulated ipecacuanha of Guibourt; the arny ^ a rewhite ipecacuanha of Merat. It has a jointed appearance, from constrictions wremote from each other. It is about the same i
__ -juiuouri; “"'■’(yhich a ( c
_I appearance, from constrictions ]eS ; i»
.v.uuk irom each other. It is about the same size as that of the annulate® UgoiM®'’tortuous, attenuated at the extremities; externally of a grayish-white
co , ”j r r, v s en» ,el ('
brownish by age. It presents no rings, properly so called, but is marked e jjj tu lliun'>cular grooves. It consists, like the annulated species, of a thin yellowish m ■ aC eo lj5 'and a cortical portion. The fracture of the root is not at all resinous, but , 8 l„ aand of a dull-white colour; the fractured surface presenting, when examined j Th enifier, numerous shining pearly, probably amylaceous, spots. The odour is HynC ouScomposition of it, according to Pelletier, is emetina 6, fatty matter 2, starch amatter (very little of the latter) 92. - ^ se ei 0
The important dietetical uses of coffee (semina coffees), the albumen o* plaid ,sfir ! QA Coffea arabica, demands a short notice. The co y^ivel/
_ ’ a native of Arabia Felix and Ethionia. but is e
j - ■
.ucmoiauous enclocarp (the parchment-like putame ^ rgen i~.bbotanists), and consist of a horny, yellow, bluish' ° r ty urr0 vt,albumen, which is on one side flat with a longitudina (, r yo,on the other convex. At one end of the seed is. 1 ' 1 ®h its cordiform mo,• ' rL ~ J —'- J - ,c
-umra. At one ena ot ttie seea is i |,c _
with its cordiform cotyledons. The dried berries seeJj
nnrt»,l — r->- • jOccasionally th ® , v jth
the /tusk) are m el