28 THE GOLDFISH AND ITS CULTURE. 
A bit of forest in which grow a few chestnut-trees was, by the 
then few village boys said to be ‘full of chestnuts,” but now, when 
the village has become a large town or city, the few chestnut-trees 
are not looked upon with the same admiration because, though in 
equally good condition, they do not furnish chestnuts enough to 
go ‘round. 
A piece of land of given size supplies in plenty, vegetables for 
one family, but if the family increases in numbers, and additions 
have to be made to the house at the expense of the piece of 
land, it can no longer furnish the original quantity of food. New 
land then is added to the field, or, if that is impossible, that remain- 
ing is forced to increased production by the use of manures. 
Now then, why not apply to pisciculture the rules guiding agri- 
culture, when viewed in this light? The fish-consuming family has 
inordinately increased, its dwelling is enlarged at the expense of the 
fish-producing rivers which are now made to serve other purposes. 
New additions are consequently necessary and possible by the 
proper use of water-courses that are now going to waste. 
Pond-culture is not solely confined to the production of food-fish, 
there being many large establishments devoted to the exclusive 
culture of ornamental fish. 
The largest of these are also in Europe, one in Oldenburgh cov- 
ering twelve acres, yielding anually 300,000 goldfish, and affording 
employment to many people, A still larger establishment is that in 
Austria, belonging to Baron de Washington. 
There are besides many smaller establishments scattered about 
all over Europe, and generally near the large cities, just as we find 
florists in the immediate neighborhood of our own cities. 
