1158 OVSTKRS, AND ALL ABOUT THEM. 



If tiles are used in stacks, as on some French breed- 

 ing-grounds, it is obvious that all the ground between 

 them is unoccupied by collectors, whereas the roofed col- 

 lectors can be placed with their ends touching one another. 

 Bearing in mind the immense fecundity of the oyster, one 

 cannot have too many collectors on any given space of 

 ground, consistent always with their being easy of access. 



During the breeding season, the temperature of the. 

 water should be constantly observed. If the weather is too 

 warm, the inlet sluices should only be opened during the 

 night tides ; if not warm enough, they should be opened 

 during day high- water. 



During spatting time, it is an absolute necessity that 

 water should be let in as much as possible, but as little as 

 possible let out. Double sluices should therefore be fitted 

 to each port of inlet, or outlet, which will allow the water 

 to pass one way and not the other, as necessary. Before 

 entering into the more general questions of breeding and 

 fattening, w T e will give a list of some of the materials for 

 the model oyster farm. 



FOR COLLECTORS. Coarse canvas, wooden frame- 

 works, tar, wooden trays, stakes for securing collectors, 

 tiles for filling up corners. A few wires and posts to rest 

 tiles against, lime, clay, and sand, mixed together in a thick 

 solution when used. 



AMBULANCES. Top and bottom trays fitting closely 

 together, covered with coarse canvas and tarred, or similar 

 trays, made of perforated zinc, &c. 



Flat-bottomed boat, rakes, harrows, brush-harrows, 

 dipping-tubes, for tarring and coating with lime, &c., cul- 

 tacks, oyster-spuds, hand-distributors, tubs, wash-measures, 

 dredging-boat complete for summer grounds, &c. 



