PREFACE 



Ir Sir Almroth Wright's prophecy — "the physician of 

 the future will be an immunizator " — is true regarding the 

 future attitude of the practitioner of human medicine 

 towards sero - vaccine therapy, I believe it may with 

 equal truth be applied to the practitioner of veterinary 

 medicine. Certainly there is as much scope for its 

 application in the latter profession as in the former — nay, 

 more : the human practitioner has difficulties and anxious 

 problems to encounter which to the veterinary practitioner 

 are unknown. Every medical man knows with what 

 prejudice his patients look upon any new line of treatment, 

 and particularly so if such treatment is being driven home 

 at the point of the hypodermic needle. For the sake of 

 his own reputation, he is often loath to rouse those latent 

 feelings, with the result that he moves very cautiously — 

 sometimes too cautiously — to the detriment of his patient. 

 Again, a doctor's patients are all possessed of a highly 

 developed nervous system, where the influence of mind 

 over matter is very pronounced, and where emotions and 

 idiosyncrasies are greatly in evidence, requiring a strong- 

 personality and the comforting but forcible courage of the 

 trusted physician to quieten; but all these qualifications 

 sometimes avail little, the patient discarding the treatment 

 without fair trial. Or, it may be by a sheer coincidence that 

 after a dose of vaccine has been administered complications 

 in the course of the disease supervene, and although they 

 may have nothing whatever to do with the treatment, 

 vaccine therapy is blamed and condemned, the medical 



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