WORMS. 



481 



to start from. The generation of parasites is at all times of great 

 interest, but, with reference to the 

 Entozoa, there is so much still un- 

 known, that the natural historian who 

 would be able to throw light on this 

 branch of his favourite study would 

 deserve the thanks of those who, while 

 they take an equal interest in it with 

 himself, have not the opportunity, or 

 perhaps the industry, which he pos- 

 sesses. 



The symptoms of the presence of 

 worms in the dog should be carefully 

 noted and anxiously looked for, if the , 

 health of the animal is of any import- 

 ance. They are, an unhealthy appear- 

 ance of the coat, the hair looking dead 

 and not lying smoothly and evenly; 

 appetite ravenous in proportion to the 

 condition, which is generally low, 

 though worms may exist for months 

 without interfering much with the 

 presence of fat. After a time, how- 

 ever, the fat of the body is absorbed, 

 and the muscles, without being firm 

 and prominent, are marked with in- 

 tervening lines from its absence. The 

 faces are passed frequently and in 

 small quantities, the separate passage 

 of a small quantity of mucus each 

 time being particularly indicative of worms, especially if there is 



2 H 



Fig. 6. 



