REARING 231 



glass wicker-clad bottles which are used for conveying 

 commercial sulphuric acid, and are known as carboys. 

 The bottle should not be more than three parts full, 

 otherwise the process of automatic aeration, so to 

 speak, would cease, and the fish would be suffocated. 

 The risks involved in allowing the water to be 

 changed en route are great. The character of the 

 new water is often unsuitable, and a sudden alteration 

 in temperature is calculated to bring on gill fever. In 

 the case of a large consignment going a considerable 

 distance, where there are several changes of trains, 

 a competent attendant should accompany the fish 

 for the whole, or at least a part, of the way to make 

 assurance doubly sure. In the early days of fish 

 culture the tobaccoless attendant was fondly supposed 

 to aerate the water with great vigour and little inter- 

 mission by plying a pair of bellows during the whole 

 of a long railway journey. 



No sooner are the carriers filled than they are 

 hoisted on a cart standing in readiness to convey 

 them to the railway station. The cart is timed to 

 reach the station a few minutes before the departure 

 of the train by which the fish are to travel. Careful 

 arrangements have of course been made with the 

 consignee by which the fish are to be met at the 

 end of their railway journey, and conveyed from the 



