201 
is where the dip to E. and W. is away from it? and also where the pitch 
to N. and S. is away from the site. The reason is that at that particular 
point the lowest beds are brought to the surface and the drill hole will 
from the surface downward be penetrating strata that are not exposed at 
the surface. It is not necessary to bore the beds that are stratigraphically 
above such a site? because by traversing them alongside the anticline any 
saddle reef existing would be exposed at the surface. 
The site must be on the centre-country or anticline* and not at the side 
of it. 
At Bendigo, the general inclination of the anticlinal plane is eastward, 
and to the extent of about 10 feet per ioo, that is to say, if a shaft is 
sunk in centre country at ioo feet deep, centre country will be about to 
feet E. of the shaft, and at 1,000 feet it will be about ioo feet E. of the 
shaft. This rule does not hold good everywhere, but varies according to 
locality. At Chewton the inclination of the anticlinal plane is slightly 
to the W. as shown by the natural section on the hill south of Chewton, and 
also in the shaft/ of the Francis Ormond workings, where centre country 
is on the W. side of the shaft and nearer the shaft at the surface than at 
the 1,250-ft. level. 
The boring must be regulated according to the inclination of the anti¬ 
clinal plane. At Bendigo the drill was placed at an angle to give 10 feet 
of easting in every 100 feet of depth. At Chewton the inclination would 
be to the W. at about 3 deg., and so, in each locality, the local circum¬ 
stances have to be studied and allowed for. 
With such precautions the diamond drill affords a cheap and rapid 
method of locating saddle reefs, and performs, in months, work in pros¬ 
pecting that it would take years to accomplish by means of shafts, and at a 
fraction of the cost. 
[Report sent in 3.12.06.~\ 
REPORT ON THE MINERAL RESOURCES OF EAST 
GIPPSLAND. 
By E. J . Dunn, F.G.S., Director, Geological Survey. 
A belt of country rich in ores of gold, silver, copper, lead, tin, iron, 
and manganese exists between Bairnsdale and the Snowy River. The 
southern exposure of this tract is in a line drawn through Tambo and Nowa 
Nowa. Northward it stretches to the Murrav River. 
Eastward from the Snowy River to the New South Wales boundary is 
a tract of country in which payable gold has been discovered at several 
localities ; copper and silver lead ores also occur in it. 
Gold. 
Both alluvial and reef gold occur at several localities, as Mount Tara, 
the Bemm River, Club Terrace, Bonang, Bendoc, Boulder Creek, Cabbage 
Tree Creek, Genoa Creek, Mallaeoota, &c. In manv cases rich yields 
have been obtained, but the inaccessible character of the country has, no 
doubt, hampered prospecting operations. When the country is opened up 
by roads other discoveries may be expected. 
Silver. 
Silver occurs at several sites, as South Buchan, Back Creek, Buchan, 
Murrindal, Gelantipv, Mount Deddick, Sec. It is. generally associated 
with galena. There are promising lodes carrying silver that cannot be 
opened up until better access is provided. Generallv it exists in the Lower 
Devonian rocks. 
