CHAPTER VII. 



Btoancc of Sanitary Science. 



" I can't help feeling a hope that I may fight a good fight yet 

 before I die. " C/iartes Kingsley. 



WE cannot within the small scope of this little work 

 attempt to give even a portion of the list of public 

 buildings in almost every country in the world to which Mr. 

 Boyle has applied his system of ventilation during the past 

 fifteen years. The Government buildings in this country 

 alone constitute a goodly number, the system being 

 extensively used by all the departments of the Government, 

 Metropolitan, Local, and other Boards, besides the cor- 

 porations and school boards of most towns in the United 

 Kingdom. One of the largest and most important contracts 

 which Mr. Boyle has ever undertaken was the ventilation of 

 the Castalia, which, having been acquired by the Metropolitan 

 Asylums Board, has been converted into a small-pox hospital. 

 The Board paid most careful attention to the ventila- 

 tion, and after minute examination of many different 

 plans, aided by scientific experts such as Professor Du 

 Chaumont, Mr. Boyle's system was finally adopted, with 



