c 537 > 
I. The Barometrical Method of meaf uring the Height 
of Mountains , with two new Tables Jhewing the, 
Height of the Atmofphere at given Altitudes of 
Mercury. Extracled chiefly from the ObferVa* 
tions of John James Scheuchzer, M. V . Fro- 
fejfor of Mathematicks at Zuric, and a Member 
of the Imperial , and (Royal Societies of London 
and Pruffia. By J. G. Scheuchzer, M. D. 
F. (R. S. & Coll. Med. Lond. Lie. 
T H E Height of Mountains, and their Elevation 
above the Level of the Sea, hath been at all 
Times thought worthy the Attention of inquilitive 
Philofophers. We find in Tliny *, that TAcaarchus, 
one of the old Geographers, a Difciple of Ariftotle , 
and, as Rliny himfelf (files him, a Man of great Learn- 
ing, had by particular Order of fome Princes meafured 
the Heights of feveral Mountains, and that the higheff 
of them, Mount Telius in Thejfalia , was found by 
his Obfervations 125*0 Paces high perpendicularly. 
C leomedes alfo, a Grecian Aflronomer and Geographer, 
who lived fometime before our Saviour's Nativity, af- 
ferts f, that the higheff Mountain cannot be above 15- 
Stadia, or 9375 Roman Feet high. 
But Tlutarch ^ fixes the perpendicular Height of 
the higheff Mountains, as alfo the greatefl Depth of 
the Sea, only to 10 Stadia, or 6250 Roman Feet. It 
will appear by the Sequel of this Paper, that the 
* Hift - Nat. L. xi. c. 6*. f Cyclic* Theor. Cap. x. $ In vita Aemilij. 
C c c c Height 
