68 PRACTICAL CARP CULTURE. 



this treatment, if continued once a day for a few days, keeping the carp 

 out of water for a few minutes, giving either treatment time to have an 

 effect. 



POLYP 



Is a disease similar in character to the former. The body of this parasyte 

 is cylindrical, with the mouth, at one extremity, surrounded by one or a 

 aeries of arms, or tentacles, it not only multiplies in the usual way by 

 ova, but by buds and sections as well. The Hydra Polyp has several 

 heads from one body, and like the fabled serpent of mythology, one head 

 taken off another will grow, with chances that the decapitated head will 

 form another body of its own. Examined by the naked eye the affected 

 parts look as if covered with a gelatinous matter. The remedies for this 

 disease are the uanie as those given above 



ASPHYXIA. 



The characteristics of this disease is general weakness and lack of 

 appetite, and is the result of sudden changes of temperature, or poisonous 

 gases in the pond. Change of water is the best remedy. 



DROPSY 



In its early stages, is a swelling of the body at any part which gradually 

 extends over the entire body until it becomes almost spherical. It does 

 not affect the appetite and is no respecter of season or age. It runs its 

 course in from three to six months and is generally fatal. We know of 

 no remedy but change of water. 



Other diseases, no doubt, attack the carp, but those named are the 

 principal ones. Time and experience may show the seriousness of others. 



INJURIES. 



In the frequent handling of carp, in the changes from one pond to 

 another, and in the shipping of them, accidents are almost unavoidable, 

 eyes are put out, scales knocked off, fins and tails injured, &c. If the water 

 of the pond is in good healthy condition nature will do much in healing 

 the eye, and in reproducing the scales, and patching up the fins and tails. 



HOSPITAL POND. 



Where many fish are affected, injured or sick, a small hospital pond 

 will make them accessible, render their treatment easier, and enhance 

 the chances of ultimate recovery. Such a pond should have an average 

 depth of about 12 inches and a temperature of from 70 to 80 degrees Fah- 

 renheit, maintained, if possible. The water should be slightly saltish ; 

 this can be accomplished by making brine and pouring into it. There are 

 few diseases of fish to which salt water will not contribute in affecting a 

 cure. 



POND DIFFICULTIES IN SUMMER. 



The great majority of difficulties that have been reported to us during 



