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44 North of Prince George.

Sample 8 was taken from a series of beds, probably of Tertiary age,
outcropping for 750 to 1,000 feet on the immediate west bank of Fraser
river, in lot 3991, 30 miles above Prince George (Figure 1, locality 2).
The following section was measured from the river level up.

(a) Covered with talus 7 feet.

(b) Bluish-grey clay 3 feet.

(c) Sandy, white-grey clay 2 feet.
(d) Very plastic, white clay 2 to 6 feet.

(e) River gravel and boulders 4 to 8 feet. 4

Sample &. Fire-clay. Grey-white, bedded clay. Good working and
drying properties. Sandy in texture. Burns to white, porous bodies up
to cone 7 at which it is cream-coloured, hard, and porous with total shrink-

_ age of 6 per cent. It is intact at cone 20 (1,530 degrees C.) and would
probably stand up high enough to be classed as fire-clay. On account
of its good working and drying qualities, low shrinkage, and refractoriness
this material would make firebrick and stove linings.

Lhe outcrops are over 700 feet in length, but how far the beds exten
back under the flat terrace that forms the top of the gravel is not known.
A wagon road 1} miles long would connect the deposit with the Prince
George-Giscome portage road at a point about 22 miles from Prince Gecrge.
The most feasible method of transportation is by scow down the river to
Prince George. There is a steamer channel all the way. Although the
overburden that will have to be moved is thick in places there should be
enough material to pay for exploitation. Care should be taken to separate _
the different beds, for the lower beds recorded above are not, in all
probability, of equally good quality. This clay cannot at the present
railway freight rates be shipped to eastern Canada at a profit, but it may
become a decided asset if a market can be found for it in northern British
Columbia.

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BRICK CLAYS.

Ten samples of clays that were not of refractory grade were tested.
Of these the white silts at Lillooet (Figure 2, locality 40) and grey, bedded
clays at Quesnel (Figure 1, locality 10, and Figure 12, locality 6) gave the
most satisfactory results. Both are suitable for the-making of common
building brick and the Quesnel clay can in addition be used for making
drain tile. Very large amounts of the white silts similar to those at Lil.
looet are found at intervals in the immediate neighbourhood of Fraser
river from Lillooet to Quesnel. The Quesnel clays are not of very great
extent. ‘The clays tested at Australia creek might be used for making
building brick if no better material were available. None of the other
clays tested are of commercial value.

Sample 1. One mile from Lillooet on road to Seton lake (Figure 2
locality 40). Green-grey, bedded silt of White Silt formation of Clacia
age. Highteen feet of 40-foot bank sampled, with coarser layer omitted.
Clay is short in texture when wetted, burns. to light red porous body. —
Shrinkage air dried, 5 per cent, burnt at cone 03 (1,090 degrees C.) 7 per
cent. Absorption, cone 010, 18 per cent, cone 03, 17 per cent. Makes
good common brick by soft mud process; not plastic enough for wire-

b)

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