TRANSPORT OF FISH GLASS CARBOYS. 405 



Pound well together in a mortar till of the consistency 

 of ordinary dough ; break into small pieces according 

 to the size of the fish you have to feed. 



If you feed your fish regularly — morning and even- 

 ing is the best time — you will find that they will 

 shortly get exceedingly tame, and cause by their gam- 

 bols much instruction and amusement to yourself and 

 friends. 



ON THE TRANSPORT OF FISH AND FRY. 



NoTmNG is so difficult as the transport of fish when 

 you do not know how to do it. Nothing is so easy 

 when you do know how to do it. 



In the transport of fish you must recollect that you 

 cannot give them continual change of water. First, 

 because when on a railway journey it is difficult to 

 obtain water ; and secondly, because the water when so 

 obtained may possibly contain iron or some other sub- 

 substance injurious to the fish. 



It is therefore necessary to add fresh oxygen to the 

 w^ater as you go along. This is done, firstly, by allow- 

 ing the water to splash about as much as possible with 

 the movement of the railway carriage ; and secondly, 

 by pumping fresh air into it ; thirdly, by the use of 

 lumps of ice. For the transport of fish to long distances, 

 nothing is so good, when you cannot yourself ac- 

 •company the fish, as the large glass bottles packed 

 tightly into baskets with straw, and known as sul- 

 phuric acid carboys ; your chemist will probably tell 

 you where to get these. When the fish are put into 

 them they must not be more than three parts full of 

 water, so that there may be plenty of splashing in 

 transitu. 



