[ 93 ] 
Upon the whole, I have not hitherto met with 
Evidence fnfficient to induce me to believe, that 
either the Mel rofcidum , or any Kind of Manna , 
was in common medical Ufe either with Hippocrates 
or Galen . Aquarius mentions it once *, and, as I 
know of, only once : He makes it a Purgative, and 
to be fomewhat ftronger than CaJJia . 
It is now pretty generally known, that th z Mannas 
in Ufe are not a Mel aerium , or Honey-Dew, as was 
long believed, but a Succus proprius iffuing out of 
fome particular Trees, at proper Seafons, and in 
fome Climates only ; and that, during the Summer s 
Heats, a great Number of Vegetables, in almoft all 
the temperate Countries, afford a Juice fomewhat 
akin to Manna, from whence the Bee collects 
and prepares her Honey. It may not, however, be 
amifs, nor very foreign to our Subjeft, to exhibit a 
fhort Account, how the Manna OfEcinarum is col- 
lefted. 
In Calabria and Sicily , in the hotteft Part of the 
Summer-Months, the Mama ouzes out of the 
Leaves, and from the Bark of the Trunk, and larger 
Branches, of the Fraxinus, or Calabrian Afh. The 
Ornus likewife affords it, but from the Trunk and 
larger Branches only, and that chiefly from artificial 
Apertures; whereas it flows from the Fraxinus thro' 
every little Cranny, and burfls thro' the large Pores 
fpontaneoufiy. 
What is got from different Parts of the Tree ac- 
quires different Names; the Trunks generally afford 
* Acluar. Method. Medend • L> V. c. 8. 
tho.fe 
