90 PROCEEDINGS OF SECTION A. 
e is.at the middle of the road ; 7 is where creek crosges road. 
‘The following azimuths and distances (latter in feet) should 
serve for finding the mark:—Azimuths: 1T,-T,, 125° 
37'26"'; T,-T,-T',, 1139 49! 26"; M.S.-c-d-e, 2379 8! 26". 
Distances: T, f, 55-2; f'T,, 187-0; VT, 176:1; Tie, 
121-5; ed, 19-0; de, 66:0; ¢ to M.S., 262-0. , 
Station.—Strahan. Lat. 42° 9' 33". Long. Sh. 4]m, 27s, 
Time. ! | Eleivent. : 
Feb. 1 | 4:30-4°40 p.m. 
Declination JORG Oe 
Jan. 31! Vibration 7:22-7:33 p.m.) ¢ Horizontal 
! Deflection 3-45-5:15 p.m.) Force "2051 
31 10-10°50 p.m. 01); eat 
hee a.m. f Dip 71° 5! 11 
The underlying rocks are sandstones and conglomerates, 
probably of Silurian age. 
Azimuths.—Middle point of front firing-mound 600 yards 
from butis, a2, about 11° 33’. Apparently highest point of, 
mountain range at S.W. corner of Macquarie Harbour (see 
oe I., plate IV.), B, 19° 17‘ 1'" Corner of Customs 
ouse nearest to M.S. mark, c, 1009 21'56''. Middle point 
of front firing-mound 400 yards from butts, d, about 317‘ 
a , 
Magnetic station from M.S. mark.—-At this station there 
is°no record of angle of depression, which was very con 
siderable. Horizontal distance, 430°9 feet; azimuth, 2249 
47' 16". 
Dwections for finding M.S. mark.—Buried. Use a and d 
to approximately locate the site. Then employ ¢ and B for 
final identification. In November, 1902, the firmg mounds 
were found shifted a few feet. Hence, a and d@ only very 
roughly indicate site. A small cairn was therefore erected 
10 feet from M.S. mark in the line towards c. | 
Station —Port Davey. Lat. 48°20’ 11". Long. 9h. 44m. 
42s. 
Element. 
6° 40-6°57 p.m. Declination 9° 34° 58" 
4 Vibration 5:27-5°38 p.m.| | Horizontal -1975 
Detection 3°45-5°40 p.m.}§ Force 
3 4-4°45 p.m. : : Dip 71° 49! 44” 
4°45-5°30 p.m. 
