I02 



Veterinary Medicine. 



is used it should be repeated in eight days to destroy the products 

 of the nits that escape at the first dressing. 



In the case of birds the dry powders can be advantagously put 

 in a dust bath. A box with dry, powdered clay or loam, is 

 medicated with quicklime, oil of tar, phenol, insect powderf 

 stavesacre, snufi, or naphthalin, and placed where it will be kept 

 dry and within easy reach of the birds. Driven by the itching 

 they will resort to this bath at intervals and quickly destroy all 

 lice on their bodies. 



Baths of sulphur smoke have been employed. A small box is 

 made with a hole through which the head is made to protrude. 

 The bird having been placed in position a match is burned in the 

 box and in a few minutes all the vermin on it are killed. 



In the absence of the active insecticides it is well to bear in 

 mind that a thorough inunction with sweet oil, lard or any 

 bland oil will kill the lice by closing their breathing stigmata. 



For sheep in large herds baths are the natural resort, and for 

 these the reader may see under acariasis. 

 ■ All clothing should be boiled or heated to the boiling point to 

 destroy the nits and mature lice. 



CIvASS. ARACHNIDA. 



Order Acarina, Mites, Ticks. 



superfamily : ixodoidea, ticks. 



families : argasid^ : ixodid^. 



Family ARGASID^. 



Subfamily : Argas, Ornithodorus. 



Family IXODID^. 

 Subfamily : Rhipicephalinae, Ixodinae. 



RhIPICEPH ALINAE . 



Subfamily : 

 Genera : 



Subfamily : 

 Genera : 



Rhipicephalus, 

 Boophilus, 



IXODIN^. 



Ixodes, 



Eschatocephalus, 

 Aponomma, 



Haemaphysalis, 

 Dermacentor. 



Amblyomma, 

 Hyaloma. 



