Base Line 
a | 
.S.COAST SURVEY 
WEST B. 
oo 
; Boulders ~~ 
ad, marking Terminus. : 
- AD.BACHE Superintendent cae eon ate Gueea ie pitlg Soe 8 
rene ' pace bel f Block Breet square by 2.5 feet high, 
Pe sie, Sepsis . mac i: ; 
eae : A MEASUREMENT OF EPPING BASE — vi 
: ; 'é 
‘ \ 8 7 MATNE, = 
sides of Plank. Curb; Sia feet square. 
FP Marhle Monument with inscriptions 
er B 
ea ie 
Scale 20.600 
olt with cross,marking Terminus. 
a 1857. 
eee Se 
pees 
Se | 
aria s ¢ : 
Kors ; 
Be 
VERTICAL SECTION OF MONUMENT 
: Sage aes AT 
sts. ae EAST BASE 
and the feet of s : . - } 
iN; 
Gully ~~ ™% 
Itt deep 
4 
= - 2 
oe 2 a: Sea = 
| Tes . 
| oy i 
| 
castieetiestieriestiedindtentntettedates attests 
PROFILE OF BASELINE. 
FS sid ye 
Fe re lr ting ensinentin 
"eC . oo 5 
z iso feet 
2 . 40 
CROSS SECTION 
metres south 103 0) 75 60 45 30. 
I 
% metres north 
Lao te Ey 
ee ee ee 
CROSS SECTION AT EAST BASE 
75 7o 
ae Be Oh 
ae ae, OS eat 
65 60 55 So 4h 
T 
ee ee 
; Tae } i 
> 
rofile 
horixontal shading 
cainiteat hades 
[Sedonfe Abrde Mark ry. T i 
Nl. PLAN, SECTIONS AND PROFILE. 
