l;il 



CHAPTER VI. 



Origin of Vaccination — Advantages of the System 

 — Opinions of Continental Authors on the Vac- 

 cination of Sheep — Experiments of Ovinating 

 Sheep after Vaccination — Analogy between Va- 

 riola AND Sheep-pox — Variolation and subse- 

 quent Ovination — Substitution of Ovine for 

 Vaccine Lymph — Messrs. Ceely's and Marson's 

 Experiments — Inoculation of Oxen with Ichor 

 of Sheep-pox — Experiments — Conclusion. 



The benefits accruing to society from tlie discovery 

 of vaccination are at the present day so generally ad- 

 mitted, that they require from us no argument either 

 to support or defend them. As Englishmen, we can 

 boast that our country gave birth to that philanthropist, 

 who, by his perseverance, talent, and untiring zeal has 

 thus been the means of saving the lives of thousands. 

 The details that are given in the preceding chapter too 

 painfully prove the gi*eat sacrifice of human life w^hich 

 had hitherto been caused by small-pox, and that inocu- 

 lation, instead of diminishing, was found to rapidly in- 

 crease the number of its victims. Some power, there- 

 fore, to stay the torrent of destruction w^as needed ; 

 when Jenner stood forth, and unaided and alone, nay, 

 discouraged and contemned, raised a barrier whicli di- 

 verted the force of the pestilence. The scourge by him 



