CHAP. XVIII. 



VACCINATION A DELUSION. 295 



dence, statistical tables and diagrams, furnished by those 

 who oppose vaccinations, such as were brought before 

 them by Mr. Biggs of Leicester, Mr. A. Wheeler, and 

 Mr. William Tebb, who, though all were examined and 

 cross-examined on the minutest details, might as well 

 never have appeared so far as any notice in the " Final 

 Report" is concerned. But there is also a very elabo- 

 rate paper contributed by Dr. Adolf Vogt, Professor of 

 Hygiene and Sanitary Statistics in the University of 

 Berne, who offered to come to London and submit to 

 cross-examination upon it, which, however, the Commis- 

 sion did not consider necessary. This paper, a transla- 

 tion of which is printed in the Appendix to the 6th 

 Report, p. 689, is especially valuable as the work of a 

 thorough statistician, who, from his position, has access 

 to the whole body of European official statistics, and his 

 discussion goes to the very root of the whole question. 

 The treatise is divided into nine chapters, and occupies 

 thirty-four closely printed pages of the Blue Book; but, 

 being an elaborate argument founded mainly on a scien- 

 tific treatment of statistics, there was probably no mem- 

 ber of the Commission capable of adequately dealing 

 with it. Yet it is of more value than fully nine-tenths 

 of the remainder of the voluminous reports, with their 

 31,398 questions and answers. Professor Vogt's treatise 

 covers almost the whole ground, medical and statistical, 

 and enforces many of the facts and arguments I have 

 myself adduced. But there are two points which must 

 be especially mentioned. His first chapter is headed 

 " A Previous Attack of Small-pox does not Confer 

 Immunity." I have long been of opinion that this was 

 the case, and have by me a brief statement, written six 



