VII. 



Important as is the system described, Messieurs 

 Gehin and Remy have invented another which will pro- 

 duce even more extraordinary results. 



It is well known that it is difficult to naturalize fish 

 peculiar to one country in another country : nor is it 

 easy even to remove with success fish from one river to 

 another in the same country. The introduction of carp 

 into England in the year 1514 was considered, it will 

 be remembered, a very marvellous operation, and it is 

 spoken of as such in every Natural History of Fish ; and 

 though it has long been known that fecundated eggs 

 might be removed from place to place, it does not ap- 

 pear that in any country any great progress has been 

 made in the stocking of rivers by that system. 



But Remy and Gehin have got over all difficulty by 

 their new fashion of removing, not the fish, but the eggs. 

 To do this, these are the directions : 



1. Take a box similar to that already described. 



2. Place in it a layer of fine sand ; on that layer place 

 one of pebbles of about the size of a nut ; on the pebbles 

 put a layer of fecundated eggs. Then begin again with 

 a layer of pebbles and of eggs, and continue until the 

 box be full. 



3. Plunge the box into water to cause its contents to 

 be consolidated, and send it off. 



4. Take care during the journey to keep it in the 

 open air. 



5. On arriving at its destination, divide its contents 

 into other boxes, in the proportion of one female's spawn 

 for each. 



6. Place the boxes in the bed of a stream, cover them 

 up, and leave them, as already described. 



