17G 



PARASITES INFESTING THE DOG. 



nearly half an inch in length, when it has long been allowed to 

 infest the dog. To destroy ticks, the best remedy is the white 

 precipitate, used in the same way as for lice ; but mercurial ointment 



The Tick, magnified. 



will do equally well, the objection to the latter being that it 

 makes the dog greasy, and in cold weather chills him considerably. 

 The MANGE-INSECT (Sarcoptes canis) is slightly smaller than 

 that of the horse, which it closely resembles in other respects. It 

 burrows into the skin, leaving a protuberance at its entrance, from 



Male Mange insect, magnified. 



