8 
(46) Williams Farm, 6 Miles South of Chilliwack 
Gritty, grey-white diatomite about 1 foot thick occurs in a small swamp. 
(47) Frazers Farm, Pukaist Creek, Kamloops District 
Grey-white diatomite 6 inches to 3 feet thick, covered by 2 feet or 
less of peaty matter and lying in a meadow in a wide valley. 
(48) Deadman River (North of Kamloops Lake ) 
Small deposits of diatomite with calcareous shells, lying close to the 
shores of a chain of small lakes. 
Loon lake, east of Clinton, Lillooet district. The sample consists 
of Melosira granulata. 
TERTIARY DEPOSITS 
(49 to 54) Quesnel and Vicinity, British Columbia 
The following statements are based on an account given by L. Rein- 
ecke. 1 Tertiary sediments consisting of gravels, sands and clays, and 
beds of lignite and of diatomaceous earths occur along Fraser river from 
a point 8 or 9 miles above Quesnel to beyond Australia creek, 17 miles 
below Quesnel. The beds in places are unconformably overlain by nearly 
flat-lying Tertiary basalt. The diatomite is grey-white to cream coloured 
and occurs interbedded with the Tertiary clays and sands. Some beds 
are only a few feet thick. At one locality, 2 miles southwest of Quesnel 
“about 48 feet of infusorial earth is exposed in thick beds between 
which are three layers of silty or sandy beds having a total thickness 
of 14 inches” 
These deposits consist almost entirely of variations of Melosira granu- 
lata and resemble those of Virginia City, Nevada, Surprise valley, Cal., 
and certain deposits of Oregon. Melosira decussata (Ehrenb.) Kiitz. in 
H. L. Smith T. S. No. 221 and Melosira spiralis (Ehrenb.) Kiitz. in H. L. 
Smith T. S. No. 231 appear to be merely variations of M. granulata, 
differing in the length and breadth of the valves. 
The deposits are absolutely pure; the only form not Melosira is an occa- 
sional Tetracyclus ellipticus . 
The six samples from the vicinity of Quesnel are apparently alike. 
They are very pure and contain an unusual variation of Melosira granulata. 
The diameter of the frustules, in proportion to their length, varies exceed- 
ingly, the smallest forms appearing as Melosira granulata spiralis (Ehrenb.) 
Grun. One sample (No. 51, lot 1132) is from a bed of pure Melosira 
granulata unconformably overlying another bed containing the same 
species. The overlying bed possibly is of recent age, but the material 
composing it may have come from the Tertiary beds. 
‘Geol. Surv., Canada, Mem. 118, pp. 13-17 (1920). 
