Manna Ash
a tree which grows on the skirts of mountains in Calabria. Between the middle of June and the end of July the manna gatherers make an incision in the bole of the tree, which they deepen the second day, inserting a maple leaf to receive the gum. Sometimes bits of reed or twigs are applied, on which the manna hardens in tubular pieces called canali; these being considered purer than the rest, fetch a higher price. 1 MANNERING MANOMETER