I

88 Juices.

of gathering the plant at the proper feafon, and pre-

venting the mixtureof anyothervegetable, (Tee Mal.

Med.)— the evaporation fliould take place as foon as -

poffibleafter the expreffion ; and therefore thejuice

fhould not be bought, already expreJZd, from a gar-

dener,—as has been in London too often done. For,

if,as Lewis obferves,th:sexprefiedjuice,which retains

the fmell of the plant, be fuffered to fettle tili h

becomes clear, it lofes nearly all the fpecific

flavour of the Hemlock ; the odorous principie

feeniing to feparate and fubfide wich the herba-

ceous fseculencies. (M..M.) Moreover, iftheopinion

otStörk, who imputes its fometimes failingof fuccefs

to a top great diffipatiön of its volatile parts by an

-hafty evaporation, be as weil founded as it is gene-

rally believed, the evaporation fhould beßow. It

were to be wifhed that the degrees of infpifTation,

both of Juices and Extracls, could always be de-

termined with precifion. In the injpiflktion, how-

ever, of thisjuice, the connftence intended isfuch

as is proper forforming it into pills ■, which it may

be, with proper attention, and its ftrength rendered

more conftantly uniform, than by adding a quantity

of the powdered leaves, as StÖrck direcled.

In confirmation of the above obfervations, Dr.IVithering fays no medical plant, when collecled, is

rnore