168 general show at perth in 1887. 



Swine. 



Poultry, 210 entries ; Butter, 72 entries. Implements, 136 stands ; 1509 entries. 



The following is a comparative view of the exhibition of 

 stock and implements, the premiums offered, and the receipts 

 (gate money and catalogues) of each of the seven Shows at 

 Perth :— 



SHEEP DISEASES : THETE CAUSES, NATURE, AND 



PREVENTION. 



By Thomas Wallet, M.R.C.V.S., Principal of the Royal (Dick) 

 Veterinary College, Edinburgh. 



In considering this subject I shall, as far as is possible, avoid 

 technicalities and shall compress my subject into as limited a 

 space as is compatible with its intelligent consideration. 



Beginning then at the foundation, I shall deal with the 

 physiology of animal life so far as it has to do with the pro- 

 duction and prevention of disease. 



The blood is the life, and the source of the blood is the alimen- 

 tary matter we ingest ; and if the food does not contain all the 

 elements — and the proportion of elements too — necessary to the 

 formation of the vital fluid life cannot be maintained. 



Recognising this important, this vital fact, I shall, in the first 

 place, endeavour to make plain the nature of this source and 

 supporter of life ; and, in the second, how its vitality is to be 

 preserved. 



