MANUAL OF THE NILAQIEI DISTRTfT, 



160 



below. The wooden frame should be constructed so as either CHAP, "vrrir^ 

 to be slung or stand on the deck. It is better^ however, that PART I. 

 it should be slung so as to swing to and fro with the motion of zoology, 



the ship. This can be effected by passing a rope through the iron 



loop C and suspending the 

 frame in some convenient 

 place exposed to a breeze. 

 The same arrangement 

 should be adopted when 

 conveyed by land in a 

 Railway carriage or other- 

 wise. Fig. II is a longi- 

 tudinal section of the fish 

 box; A being a small 

 flange for the lid to rest 

 on ; B the lid, made of 

 [perforated tin or zinc so 

 las to allow the air to act 

 on the water when the 

 lid is shut. The lid should 

 never be shut except in 

 very stormy weather, and 

 when there is a danger of 

 the fish being thrown out 

 of the boxes. In order to prevent all the water from being drawn 



off, the tap C should be 

 placed about the centre of 

 the box. Fig. Ill is a 

 cross section ; A the flange, 

 B the lid, C the tap. The 

 boxes are prepared for the 

 reception of the fish, by 

 placing about \ an inch 

 well-washed gravel at the 

 bottom ; they are then 

 filled three parts full of 

 water, and in this is placed 

 a few aquatic plants to 

 float in the water. These 

 plants give off a small 

 portion of oxygen and 

 afford shelter to the fish. 

 During the journey the 

 water should be changed 

 in the boxes and replaced 

 in the cistern three times in twenty-four hours, or once every 

 eight hours if possible. It is best to throw the fresh-water 



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