[ 222 ] 
iS; Palatine procefs of the os maxillare, whofe upper 
furface is Ifridlly a horizontal plane, and not con- 
vex, from behind forward, as is always, tho’ very 
unjuiHy, painted. 
T, The orifice of the tuba euftachiana, whofe pof- 
terior edge 
V , is cartilaginous and prominent, forming a refifi:- 
' ance to the extremity of the infirument, when 
pufh’d againft it. 
The upper and lateral part of the fauces. 
Xn, Velum pendulum palati. 
X, Part of the foramen magnum occipitis. 
X, The infledled extremity of the fyringe in the ori- 
fice of the tuba euftachiana. 
XXXVI. T^entameii Chemictmt de Calcis 
AEUone in Salem volatilem alcalinum, 
AuElore Johanne Alberto SchlolTerj Ultra- 
jedlino, /kf. Z). 
Read June 5, | ^Oftquam chemicorum folertia falium 
‘755’ J alcalinorum volatiliuna in genere om- 
nium, e quacunque re artis vel naturas viribus pro- 
dudlorum, veras dotes atque charadleres invencrat, 
conflitit, falia hascce diverfo nomine a corpore, unde 
feparata fuerant, petito, infignita, et ab imperitis ad 
hsBC ufque tempora baud raro pro diverfis habita, 
quoties probe depurata fuit, omnia eildem praccife 
gaudere dotibus, nullamque amplius inter fe admit- 
tere differentiam. Afl fimul artis chemicae Icduli 
obfervarunt, calcem (ut aiunt) vivam fall huic volatili 
alcalino 
