TIjs Use os the Globes.

j e !.^ a f e of the Celestial Globe, these Pro-luslS are then call’d the Celestial Hemi-

> spheres.

!%’ ■ .

■ y t 'k 0r ^ er t0 measure tt>is Line q m, it was necef-“ e gin with some Base-Line to he first of all mea-N) ’ ail< i then to compute a fundamental Triangle orL T^' ne Grounds of their future Work.

slUS the y pitched on the Distance betweenand the Village Poiki, for the Base-Line B h,e ‘t lay along the River, and could be most ac-.

V meaiured on the Ice. It was measured twice

j

Th

first Mensuration gave1 h e second — —

she

Poises. Feet. In.7406 5 o7406 5 4

Jjj "tnean Length therefore is 7406 5 2

t^ing this Base-Line known, they calculatedSn,j ^.Triangles A B b and ABC, from which they“ e Distance between Avasaxa and Cuitaperi to bett Sirs ^ A C ; from whence they proceeded to findve p. es and Angles of all the other Triangles roundN f g ' Jre , as A H C, A H P, P QN, C T K, We.

Oin thence having found the Sides A P, P.Q,,Ale's a s’ P C, they formed the Right-angled Tri-r > o O P > AFC , PDQ_, CGM, by drawingA tk. P’’ P D, at Right Angles to the Parallels past-jjtte Q_ and M, and parallel to the Meridian

tiy 'jT s is there represented.

thus measured the several Lines, they

- and the fame they did on the other Side the

.5 ic _—_ r

having

p Q j^ n d as follows.

Ap^ 935°,45Ap ~~ 14213,24

Q r , 8566,08

22810,62

T,

On the other Side.- l32d7A82 4995,8316651,05

g -

t>tal

54940,39

-tef (

— - 54944 , 7 6

54940,39

?4C ataMean the MeridianLineisQM—54942.57

4 .

297