33° 



Veterinary Medicine. 



In Pasteur's early experiments he began injecting the emulsiort 

 of the cord desiccated for 14 days, following with that of the 13th 

 day, and so on to that of the 5th. It was soon found that this- 

 was comparatively ineffective when inoculation had been made 

 with a strong virus or in a large dose, and the treatment for such. 

 cases was modified to what is now known as the intensive method. 

 The weaker forms of the virus are given at shorter intervals on 

 the first days of treatment, and the stronger forms repeated again 

 and again, and, in place of a 15 days, course of treatment, this is- 

 extended to 2 1 days. The following table illustrates the course :. 



Day of Treatment 



lit day - 



2d 



3d " 



4th ■'_ 

 51b "_ 

 6th". 

 7th "_ 

 8lh"_ 

 9th"_ 



loth ". 



nth ". 



i2th". 



13th ". 



14th". 



Nuinber of Days 

 that cord had been 

 desiccated. 



.morning. J H^a^s 1 

 \ 13 (lays. j^. 



.evening 



.morning 



.eveniti);. 



.morning. 

 _ evening. 



{;; 



6 

 6 



--5 

 --5 

 --4 

 --3 

 --4 

 --3 

 --5 

 --5 



-4 

 --4 



-3 



Dose Injected. 



30c. 



3CC. 



2CC. 



2CC. 



2CC. 



ICC. 



2CC. 



I>^CC. 



200. 



200. 



2C0. 



2CC. 



2CC. 



2CC. 



200. 



20c. 



2 CO. 



2CC. 



2CC. 



2C0. 



iSih" 3 " 



i6th" 5 " 



17th" 4 " 



i8th" 3 " 



19th" 5 " 



2olh " 4 " 



2ist " 3 " 



Under this treatment the system becomes educated in the pro- 

 ditction of antitoxins, and perhaps also in phago-cytosis so that 

 when subjected to the lethal doses of three, four, five and six 

 days preservation, it successfully resists them. The most con- 

 clusive argument in favor of its efficacy is this undeniable fact 

 that the individual escapes death under injected doses which in 

 any unprotected system would prove fatal. 



