986 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [44] 
He has selling parks upon the emergent portions of the banks, a 
large shipping basin, and in the cove of Kérolé, an excellent basin with 
a bottom of clayey sand, where the growth is remarkable, even though 
there is no current. The oyster develops rapidly, and in six months in- 
creases in size from a quarter of an inch to an inch and a quarter. 
But in the ease of M. Charles, as in that of M. Turlure, in Bélon, as 
well as in Morbihan, it is always necessary to commence by removing the 
mud, and forming artificially a hard bottom, in order to secure a good 
increase and insure the fattening of the oyster. All these conditions seem 
admirably united in the parks of M. Pozzy, at Ludré-en-Sarzeau. 
The fine flour-mill of Ludré, situated upon a point projecting into the 
sea, and which appears like an establishment where human industry has 
endeavored to seize from nature an important motor power, has an im- 
mense reservoir of nearly one hundred acres in extent; on one side, there 
are walled parks, intended to receive the cars, and on the other, raising ba- 
sins with a surface of over seven acres. By the action of the waves, a cer- 
tain current is produced in the parks, and the large reservoir, acting like a 
storehouse, makes it possible at almost any moment to concentrate upon 
any of the parks a continuous and steady flow. A careful examination 
of the functions of the different parts of that most judiciously arranged 
establishment of M. Pozzy, shows that he possesses, in the parks of 
Ludré, the means of varying, at will, the action of those natural forces, 
which are so favorable to the growth of the young oyster. The clayey 
bottom of the carefully cemented basins can be readily adapted to rais- 
ing, and the possibility of placing the cars, containing the young oysters, 
under the vivifying action of the currents, admits of early growth, diffi- 
cult to obtain in ordinary parks. 
Upon the whole, and despite the almost embryonic state of this branch 
of raising and fattening, we can predict, in a short time, very successful 
results in parks so favorably situated and so judiciously arranged as 
those of M. Pozzy, at Ludré. 
Basins.—It is indispensable that several fattening parks and shipping 
basins should be added to all raising parks; this is a necessity to which 
our culturists of Lorient, in the gulf of Morbihan, and at Bélon, have 
been obliged to conform. Where they are wanting, much is left unpro- 
vided for, to the great loss of the industry. 
Care to be taken in raising and fattening oysters.—Having described the 
arrangement of the parks, it is interesting to point out the care which 
should be taken to insure growth and fattening. TFirst of all, the oys- 
ters should not be piled upon one another. Coste said the proportion to 
be followed in distributing them should be a million of oysters to two 
acres. This is the proportion used at Marennes. In America they are 
disposed under the same conditions, and all culturists have stated the 
proportion to be one hundred oysters to the square yard. This point 
seems to have been settled beyond dispute. 
