SECTION AT A . B. (Plate.’’.}

r

r

r

r

r i

i

t

r i

!_J

J

J

j

J

-i

FI C . 37.

SECTION AT C.D. (Plate 18.

isjpiiaiiBiiEiir&iL tide,

(DMIEST1EIR & M©IL¥MEAIE) IAllL¥AIo

EXPERIMENT, N* 2

SECTION AT E.F. (Plate. IS.)

r

r

r

r

r

r n

L J

i

i

J

i

j

f>yUmr

r

i J

r

J

r

r

r

r

L

FIG. 39.

FIG. 38

SECTION AT G.H. (Plaleht)

r

r

r

r

r

r n

r

L

j

j

j

J

i

FIG. 40.

Scale of a _ 9 _ s

s Feet

PLATO XIX

JhjLSeK Wifb SAt-Quwi-

tm