130 How to obtain it. 



So much for the house now about the furniture. A glance 

 at the accompanying illustration will give a general idea as to 

 what is required. First of all, two distributing tanks. These are 

 two long wooden boxes or troughs which receive the water from 

 the filters, one being used for distributing the spring water to the 

 hatching boxes, and the other being used for the brook water. 

 Place them overhead if practicable, but in cases where the water 

 cannot be got up to that level, they may be placed three or three 

 and a half feet above the floor. In the latter case a series of 

 round holes one inch in diameter, and short tin or lead pipes 

 four inches long will be all that is needful for supplying the 

 hatching boxes. Bore a hole, and fix a pipe so as to deliver the 

 water into the upper end of each hatching box or set of boxes, 

 which must be placed just below the bottom level of the 

 distributing tank. Regulate the supply by a small piece of tin or 

 wood, sliding in a groove made by nailing two slabs on to the 

 inside of the tank. The tanks themselves may be nine inches 

 wide by nine inches in depth. 



The advantage of placing the tank overhead where practicable 

 is that it allows the operators to pass along that end of the 

 hatchery, which is a consideration when each range of boxes is 

 close on eighty feet long. The outlets for supplying the hatching 

 boxes can then be made in the bottom of the distributing tank, 

 and by using short pieces of lead pipe, each with a flange a quarter 

 of an inch from the end, for nailing to the inside bottom of the 

 distributing tank, a screw-tap can be attached, which is a great 

 convenience in regulating the water, and on the whole better than 

 the small-scale sluice already alluded to. Fix a short piece of 

 indiarubber hose pipe on to the tap and the whole is complete. 

 Take care that all is well seasoned before using the water. 



The hatching boxes are very simple contrivances, but require 

 to be propen^maaeorthey may be found not to answer their 

 purpose satisfactorily. A very good size to make them is twelve 

 feet long, by nine inches wide, and six deep. Near the inlet end 

 fix a board across the box at a slight angle, and reaching down 

 to within an inch of the bottom. This serves to break the force 

 of the water and prevents it from washing the eggs off the 

 grilles. At the other end, in the centre of the bottom, and two 



