Foreign Vegetables. 291 
Tartar and Gum Ammoniack, a ^iij. Dia - 
grydium gifs. Mix with q. f. of the Syrup of 
Succory with Rhubarb, and make a Mafs for 
Pills f. a. of which gfs. may be taken every 
Day, or gj. every third or fourth Day. 
Befides the Sorts of Manna above deferibed, we 
have another called Manna Brigantiaca , or Laricea , 
becaufe it flows from Larch-Trees near Brianzon in 
Daupbiny. It is in fmall white Lumps, fometimes 
round and as big as Coriander-Seed, fometimes ob- 
long and larger, of an agreeable fweet Tafte fome- 
what refinous. This is feldom ufed at Paris , be- 
caufe the Italian is preferable, being much more 
purgative. 
It is the nutritious Juice of the Larix folio deciduo 
conifer a, J. B. which we have before mentioned in 
treating of Turpentine. From about the twentieth 
Day of June till the End of Auguft , it exudes at 
different Times from the Leaves, provided the 
Weather be fair ; for in rainy Seafons none appears. 
It adheres tenacioufly to the Leaves, fo as to be 
very difficultly feparated from them : The Country 
People therefore cut down the Trees in the Morn- 
ing, and pile up the Branches together in Parcels in 
a fhady Place. By this Means the Juice, which is 
now too foft to be gathered, in the Space of twenty 
four Hours is infpiflated and hardened. It is then 
gathered, and laid in the Sun till it becomes entirely 
dry •, and afterwards is cleared as much as poffible 
from the Leaves. 
Some alfert this Manna to be a Sort of Dew. But 
Lobelius and Pena relate that Manna has been found, 
in the Summer, upon Branches of the Larch- Tree 
which have been carried into a Cellar the Day be- 
fore, when none was viflble upon them ; from which 
Experiment it evidently appears to be the Juice of 
the Tree. 
u , 
Another 
