48 THE OREGON NATURALIST. 
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Official Organ North-Western Ornithological 
Association. 
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Articles and items of interest on different 
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APRIL, 1895, 
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THIs is positively the last time our premium 
offer will appear. 
Tur Oregon Naturalist will be sent, three 
months on trial, for 10 cts. in stamps. 
THE sec’y. of the North-western Ornithologists 
Association, writes ‘* Feb. and Mch. work con- 
solidated, ” 
A list of the birds of Oregon so far as com- 
pleted will soon be pubiished, as compiled by 
the N. W. O. A. 
A subscriber writes ‘* I received more an- 
swers from my exchange notice in your paper 
than from sim.lar notices in two other papers 
claiming a much larger circulation. ” 
ASTORIA’S SHELL MOUND. 
Near Astoria, Ore., thereis a deposit of clam 
shells which covers an area of over four acres 
and is piled in places toa depth of ten feet. 
Over a 
thousand loads have been hauled away to make 
The amount of shells is incalculable. 
roads, but that amount is hardly noticed in the 
From time 
to time relics of the old clam eating tribes that 
diminution of the immense heap. 
made the place their camping ground are found. 
A party recently found a clam opener. It was 
made froma whales tooth, is about eight inches 
There 
is sixteen inches of soil on top of these immense 
long, and is ground sharp at the end. 
shell heaps, on which grow fir trees, some of 
them four hundred years old. 
To clean copper coins, take sulphuric 
acid 1, to 10 of water, the water to be quite 
warm, then wash well in hot water and dry 
with a warm cloth, Warm water, soap and a 
soft brush will clean silver coins sufficiently. 
A GENIUS. 
An enterprising farmer of speculative turn of 
mind residing, near the opal mines of Idaho, 
has concluded to start a lapidary ina novel 
manner. 
He will purchase cochin chickens, yard them, 
and feed only wheat and fragments of opal. 
After a proper duration of time, he expects to 
have polished opals to sell. The idea was 
suggested to him by finding polished stones in 
the gizzard of a fowl he killed for food. 
